Journal Publications

Faculty, staff, and students at the Spine Research Institute have been publishing research breakthroughs since 1982. Together, they have published over 250 peer-reviewed journal articles, which have accumulated over 18,000 citations and are available for reference in the links below.

Present - 2020 - 2010 - 2000 - 1990 - 1980

Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2023	Reliability of a wearable motion tracking system for clinical evaluation of dynamic cervical spine function Sensors, 23:1-15 Hamed Hani, Reid A. Souchereau, A. Kachlan, Jonathan Dufour, Alexander Aurand, Prasath Mageswaran, M. Hyer, William S. Marras Cognitive dissonance increases spine loading in the neck and low back Ergonomics, 1-15 Eric B. Weston, A.L. Hassett, Safdar N. Khan, Tristan E. Weaver, Willam S. Marras	Disorientation effects, circulating small ribonucleic acid, and genetic susceptibility on static postural stability Herliyon 9(3):e14413 A. Turner, M. Markey, Peter Le, A. Reiter, C. Cox, S. Simmons, M.B. Rao, L. Altman, K. Davis, D. Huber, J. Huber, William Marras, A. Bhattacharya The Back Pain Consortium (BACPAC) research program: Structure, research priorities, and methods Pain Medicine, 24(S1):S3–S12 M.C. Mauck, J. Lotz, M.A. Psioda, T.S. Carey, D.J. Clauw, S. Majumdar, William S. Marras, N. Vo, A. Aylward, A. Hoffmeyer, P. Zheng, A. Ivanova, M. McCumber, C. Carson, K.J. Anstrom, A.E. Bowden, D. Dalton, L. Derr, Jonathan Dufour, A.J. Fields, J. Fritz, A.L. Hassett, S.E. Harte, T.F. Hue, R. Krug, M.L. Loggia, Prasath Mageswaran, S.A. McLean, U.H. Mitchell, C. O’Neill, V. Pedoia, D.A. Quirk, DI. Rhon, V. Rieke, L. Shah, G. Sowa, B. Spiegel, A.D. Wasan, M. Wey, L. LaVange Theoretical schemas to guide Back Pain Consortium (BACPAC) chronic low back pain clinical research Pain Medicine, 24(S1):S13–S35 A.Chau, S. Steib, E. Whitaker, D. Kohns, A. Quinter, A. Craig, A. Chiodo, S. Chandran, A. Laidlaw, Z. Schott, N. Farlow, J. Yarjanian, A. Omwanghe, R. Wasserman, C. O’Neill, D. Clauw, A. Bowden, William Marras, T. Carey, W. Mehling, C.A. Hunt, J. Lotz Biomechanical phenotyping of chronic low back pain: Protocol for BACPAC Pain Medicine, 24(S1):S48–S60 D.A. Quirk, M.E. Johnson, D.E. Anderson, M. Smuck, R. Sun, R. Matthew, J. Bailey, William S. Marras, K.M. Bell, J. Darwin, A.E. Bowden
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2022	Computational lumbar spine models: A literature review Clinical Biomechanics, 100:1-15 Gregory G. Knapik, Ehud Mendel, Eric C. Bourekas, William S. Marras Spine stereotactic body radiotherapy to three or more contiguous vertebral levels Frontiers in Oncology, 12:1-9 Khaled Dibs, Dukagjin M. Blakaj, Eric C. Bourekas, Ahmet S. Ayan, William S. Marras, Prasath Mageswaran, Ehud Mendel, Joshua D. Palmer A digital twin for simulating the vertebroplasty procedure and its impact on mechanical stability of vertebra in cancer patients International Journal for Numerical Methods in Biomedical Engineering, 1-16 Prasath Mageswaran, Benjamin A. Walter, Dukagjin M. Blakaj, Eric C. Bourekas, Ehud Mendel, William S. Marras, Soheil Sograti Toward an artificial intelligence-assisted framework for reconstructing the digital twin of vertebra and predicting its fracture response International Journal for Numerical Methods in Biomedical Engineering, 1-19 Prasath Mageswaran, Benjamin A. Walter, Dukagjin M. Blakaj, Eric C. Bourekas, Ehud Mendel, William S. Marras, Soheil Sograti	Reliability of a wearable motion system for clinical evaluation of dynamic lumbar spine function Advances in Complementary & Alternative Medicine, 7(2):672-683 Hamed Hani, Reid A. Souchereau, A. Kachlan, Halle Harris, Jonathan S. Dufour, Alexander Aurand, Prasath Mageswaran, M. Hyer, William S. Marras Quantitative dynamic wearable motion-based metric compared to patient-reported outcomes as indicators of functional recovery after lumbar fusion surgery Clinical Biomechanics, 97:1-6 Safar Khan, Prasath Mageswaran, Guy Brock, M. Eisner, Sue A. Ferguson, William S. Marras Differences in lumbar spine measures a a function of MRI posture in low back pain patients and its clinical implications International Journal of Neuroscience, 132:511-520 Ehud Mendel, Sue A. Ferguson, Jonathan S. Dufour, William S. Marras Feasibility, safety, and efficacy if circumferential spine stereotactic body radiotherapy Frontiers in Oncology, 1-9 Khaled Dibs, Joshua D. Palmer, Eric C. Bourekas, Ahmet S. Ayan, William S. Marras, Prasath Mageswaran, Soheil Soghrati, Dukagjin M. Blakaj	Comparisons of trunk motions and low back injury risk between alternative hotel room cleaning methods International Journal of Environmental Research and Public Health, 19:1-15 W. Gary Allread, Pamela Vossenas A physiological and biomechanical investigation of three passive upper-extremity exoskeletons during simulated overhead work Ergonomics, 61(1):105-117 Eric B. Weston, Mina Alizadeh, Hamed Hani, Gregory G. Knapik, Reid A. Souchereau, William S. Marras Motion sickness decreases low back function and changes gene expression in military aircrew Clinical Biomechanics, 96:1-9 Jonathan S. Dufour, Alexander M. Aurand, Prasath Mageswaran, Kermit G. Davis, William S. Marras Patient handling through moving of the beds and stretchers International Journal of Industrial Ergonomics, 87:1-5 Kermit G. Davis, William S. Marras	The potential relationship between a cognitive dissonance state and musculoskeletal injury: A systematic review Human Factors 1-20 Eric B. Weston, A.L. Hassett, Safdar N. Khan, Tristian E. Weaver, William S. Marras
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2021		Postoperative stereotactic body radiotherapy for spinal metastasis and predictors of local control Neurosurgery, 88:1021-1027 Dukagjin M. Blakaj, Joshua D. Palmer, Khaled Dibs, Eric C. Bourekas, Ahmet S. Ayan, William S. Marras, Prasath Mageswaran, Ehud Mendel	Neural and biomechanical tradeoffs associated with human-exoskeleton interactions Applied Ergonomics, 96:1-12 William S. Marras Dynamic joint motions in occupational environments as indicators of potential musculoskeletal injury risk Journal of Applied Biomechanics, 37:196-203 Jonathan S. Dufour, Alexander M. Aurand, Christopher N. Haritos, Reid A. Souchereau, William S. Marras
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2020	Biomechanical musculoskeletal models of the cervical spine: A systematic literature review Clinical Biomechanics, 71:115-124 Mina Alizadeh, Gregory G. Knapik, Prasath Mageswaran, Ehud Mendel, Eric Bourekas, William S. Marras An electromyography-assisted biomechanical cervical spine model: Model development and validation Clinical Biomechanics, 80:1-9 Mina Alizadeh, Alexander M. Aurand, Gregory G. Knapik, Jonathan S. Dufour, Ehud Mendel, Eric Bourekas, William S. Marras		Comparison of push/pull force estimates using a single-axis gauge versus a three-dimensional hand transducer Applied Ergonomics, 88:1-8 Eric B. Weston, William S. Marras One versus two-handed lifting and lowering: lumbar spine loads and recommended one-handed limits protecting the lower back Ergonomics, 63(4):505-521 Eric B. Weston, Alexander M. Aurand, Jonathan S. Dufour, Gregory G. Knapik, William S. Marras A biomechanical evaluation of potential ergonomic solutions for use by firefighter and EMS providers when lifting heavy patients in their homes Applied Ergonomics, 82:1-8 Steven A. Lavender, Carolyn M. Sommerich, Steven Bigelow, Eric B. Weston, Kelly Seagren, Noura Amini Pay, Dawn Sillars, Vivek Ramachandran, Chunyi Sun, Yilun Xu, William S. Marras Spinal loading and lift style in confined vertical space Applied Ergonomics, 84:1-11 Eric B. Weston, Jonathan S. Dufour, Ming-Lun Lu, William S. Marras
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2019		Patient and practitioner experience with clinical lumbar motion monitor wearable technology Health & Technology, 9(3):289-295 Sue A. Ferguson, Robin S. Berner, M.A. Bridger, Safdar N. Khan, Tristan E. Weaver, Elizabeth M. Yu, William S. Marras Prevalence of low back pain, seeking medical care, and lost time due to low back pain among manual material handling workers in the United States BMC Musculoskeletal Disorders, 20(1), 243 Sue A. Ferguson, A. Merryweather, M.S. Thiese, K.T. Hegmann, Ming-Lun Lu, Jay M. Kapellusch, William S. Marras	Impact of two postural assist exoskeletons on biomechanical loading of the lumbar spine Applied Ergonomics, 75:1-7 Michael T. Picchiotti, Eric B. Weston, Gregory G. Knapik, Jonathan S. Dufour, William S. Marras
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2018	Development of a lumbar EMG-based coactivation index for the assessment of complex dynamic tasks Ergonomics, 61(3):381-389 Peter Le, Alexander Aurand, Benjamin Walter, Thomas M. Best, Safdar N. Khan, Ehud Mendel, William S. Marras		Biomechanically determined hand force limits protecting the low back during occupational pushing and pulling tasks Ergonomics, 61(6):853-865 Eric B. Weston, Alexander Aurand, Jonathan S. Dufour, Gregory G. Knapik, William S. Marras Effectiveness of a vacuum lifting system in reducing spinal load during airline baggage handling Applied Ergonomics, 70:247-252 Ming-Lun Lu, Jonathan S. Dufour, Eric B. Weston, William S. Marras Biomechanical evaluation of exoskeleton use on loading of the lumbar spine Applied Ergonomics, 68:101-108 Eric B. Weston, Mina Alizadeh, Gregory G. Knapik, Xueke Wang, William S. Marras	Scientific basis of ISO standards on biomechanical risk factors Scand J Work Environ Health, 44(3):327-333 Tom J. Armstrong, A. Burdorf, A. Descatha, A. Farioli, M. Graf, S. Horie, William S. Marras, J.R. Potvin, D. Rempel, G. Spatari, E. Takala, J. Verbeek, F.S. Violante Authors’ response: Letter to the Editor concerning OCRA as preferred method in ISO standards on biomechanical risk factors Scand J Work Environ Health, 44(4):439-440 Tom J. Armstrong, A. Burdorf, A. Descatha, A. Farioli, M. Graf, S. Horie, William S. Marras, J.R. Potvin, D. Rempel, G. S. Takala, J. Verbeek, F.S. Violante
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2017	An exploratory electromyography-based coactivation index for the cervical spine Human Factors, 60(1):68-79 Peter Le, Alexander Aurand, Thomas M. Best, Safdar N. Khan, Ehud Mendel, William S. Marras Development and testing of a moment-based coactivation index to assess complex dynamic tasks for the lumbar spine Clinical Biomechanics, 46:23-32 Peter Le, Alexander Aurand, Jonathan S. Dufour, Gregory G. Knapik, Thomas M. Best, Safdar N. Khan, Ehud Mendel, William S. Marras Validation of a personalized curved muscle model of the lumbar spine during complex dynamic exertions Journal of Electromyography and Kinesiology, 33:1-9 Jaejin Hwang, Gregory G. Knapik, Jonathan S. Dufour, Thomas M. Best, Safdar N. Khan, Ehud Mendel, William S. Marras A review of methods to assess coactivation in the spine Journal of Electromyography and Kinesiology, 32:51-60 Peter Le, Thomas M. Best, Safdar N. Khan, Ehud Mendel, William S. Marras Curved muscles in biomechanical models of the spine: A systematic literature review Ergonomics, 60(4):577-588 Jaejin Hwang, Gregory G. Knapik, Jonathan S. Dufour, William S. Marras	MR Elastography-derived stiffness: A biomarker for intervertebral disc degeneration Radiology, 285(1):167-175. Benjamin Walter, Prasath Mageswaran, X. Mo, D.J. Boulter, H. Mashaly, X.V. Nguyen, L.M. Prevedello, W. Thoman, B.D. Raterman, P. Kaira, Ehud Mendel, William S. Marras, Arunkark Kolipaka	Spine loading during the application and removal of lifting slings: The effects of patient weight, bed height and work method Ergonomics, 60(5):636-648 Shasank Nagavarapu, Steven A. Lavender, William S. Marras Wheelchair pushing and turning: Lumbar spine and shoulder loads and recommended limits Ergonomics, 60(12):1754-1765 Eric B. Weston, Safdar N. Khan, William S. Marras An electromyographic and kinematic comparison between an extendable conveyor system and an articulating belt conveyor used for truck loading and unloading tasks Applied Ergonomics, 58:398-404 Steve A. Lavender, Shasank Nagavarapu, W. Gary Allread A biomechanical and physiological study of office seat and tablet device interaction Applied Ergonomics, 62:83-93 Eric B. Weston, Peter Le, William S. Marras	Accuracy map of an optical motion capture system with 42 or 21 cameras in a large measurement volume Journal of Biomechanics, 58:237-240 Alexander Aurand, Jonathan S. Dufour, William S. Marras An EMG-driven biomechanical model of the canine cervical spine Journal of Electromyography and Kinesiology, 32:101-109 Mina Alizadeh, Gregory G. Knapik, Jonathan S. Dufour, C. Zindl, M.J. Allen, J. Bertran, N. Fitzpatrick, William S. Marras
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2016	A biologically-assisted curved muscle model of the lumbar spine: Model structure Clinical Biomechanics, 37:53-59 Jaejin Hwang, Gregory G. Knapik, Jonathan S. Dufour, Alexander Aurand, Thomas M. Best, Safdar N. Khan, Ehud Mendel, William S. Marras A biologically-assisted curved muscle model of the lumbar spine: Model validation Clinical Biomechanics, 37:153-159 Jaejin Hwang, Gregory G. Knapik, Jonathan S. Dufour, Thomas M. Best, Safdar N. Khan, Ehud Mendel, William S. Marras Prediction of magnetic resonance imaging-derived trunk muscle geometry with application to spine biomechanical modeling Clinical Biomechanics, 37:60-64 Jaejin Hwang, Jonathan S. Dufour, Gregory G. Knapik, Thomas M. Best, Safdar N. Khan, Ehud Mendel, William S. Marras	The contribution of biomechanical-biological interactions of the spine to low back pain Human Factors, 58(7):965-975 William S. Marras, Benjamin A. Walter, Devina Purmessur, Prasath Mageswaran, M.G. Wiet	Evaluating the low back biomechanics of three different office workstations: Seated, standing, and perching Applied Ergonomics, 56:170-178 Peter Le, William S. Marras	MRI cross sectional atlas of normal canine cervical musculoskeletal structure Research in Veterinary Science, 109:94-100 Mina Alizadeh, Claudia Zindl, Matthew J. Allen, Gregory G. Knapik, Noel Fitzpatrick, William S. Marras
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2015	The secret life of the spine Mechanical Engineering Magazine, 137(10):30-35 William S. Marras Weight knowledge and weight magnitude: Impact on lumbosacral loading Ergonomics, 58(2):227-234 Ahmed T. Farrag, W.H. Elsayed, M.M. El-Sayyad, William S. Marras Changes in muscular activity and lumbosacral kinematics in response to handling objects of unknown mass magnitude Human Movement Science, 40:315-325 Walaa Elsayed, Ahmed Farrag, M. El-Sayyad, William S. Marras	Low back functional health status of patient handlers Journal of Occupational Rehabilitation, 25(2):296-302 Sue A. Ferguson, Dustin R. Grooms, James A. Onate, Safdar N. Khan, William S. Marras	Biomechanical patterns of text message distraction Ergonomics, 58(10):1690-1700 Peter Le, Jaejin Hwang, Sarah Grawe, Jing Li, Alison Snyder, Christina Lee, William S. Marras
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2014		Cumulative spine loading and clinically meaningful declines in low-back function Human Factors, 56(1):29-43 William S. Marras, Sue A. Ferguson, Steven A. Lavender, Riley E. Splittstoesser, Gang Yang Are workers who leave a job exposed to similar physical demands as workers who develop clinically meaningful declines in low-back function? Human Factors, 56(1):58-72 Sue A. Ferguson, William S. Marras, Steven A. Lavender, Riley E. Splittstoesser, Gang Yang	Objective classification of vehicle seat discomfort Ergonomics, 57(4):536-544 Peter Le, Joseph Rose, Gregory Knapik, William S. Marras	Putting mind and body back together: A human-systems approach to the integration of the physical and cognitive dimensions of task design and operations Applied Ergonomics, 45(1):55-60 William S. Marras, Peter A. Hancock Expert interview: William Marras American Journal of Safe Patient Handling & Movement, 4(2):57-61 Heather M. Monaghan, William S. Marras Special issue preface: Epidemiological studies of workplace musculoskeletal disorders Human Factors, 56(1):5 Arun Garg, William S. Marras
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2013	Carrying and spine loading Ergonomics, 56(11):1722-1732 Joseph D. Rose, Ehud Mendel, William S. Marras An EMG-assisted model calibration technique that does not require MVCs Journal of Electromyography and Kinesiology, 23(3):608-613 Jonathan S. Dufour, William S. Marras, Gregory G. Knapik	Spine kinematics predict symptom and lost time recurrence: How much recovery is enough? Journal of Occupational Rehabilitation, 23(3):329-335 Sue A. Ferguson, William S. Marras	Comparisons of tibial accelerations when walking on a wood composite vs. a concrete mezzanine surface Applied Ergonomics, 44:824-827 Steven A. Lavender, Jay P. Mehta, W. Gary Allread Shoulder muscle fatigue during repetitive tasks as measured by electromyography and near-infrared spectroscopy Human Factors, 55(6):1077-1087 Sue A. Ferguson, W. Gary Allread, Peter Le, Joseph Rose, William S. Marras
Year	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2012	The complex spine: The multi-dimensional system of causal pathways for low back disorders Human Factors, 54(6):881-889 William S. Marras A nonlinear contact algorithm predicting facet joint contribution in the lumbar spine of a specific person Theoretical Issues in Ergonomics Science, 13(3):303-317 Kimberly A. Vandlen, William S. Marras, Daniel Mendelsohn Tolerance of the lumbar spine to shear: A review and recommended exposure limits Clinical Biomechanics, 27:973-978 Sean Gallagher, William S. Marras	Immune responses to low back pain risk factors Work, 41:6016-6023 Riley E. Splittstoesser, William S. Marras, Thomas M. Best Non-specific low back pain The Lancet, 378(9829):1874 J.H. Van Dieen, P.P.F.M. Kuijer, Alex Burdof, William S. Marras, Michael A. Adams Use of a personalized hybrid biomechanical model to assess change in lumbar spine function with a TDR compared to an intact spine European Spine Journal, 21(S.5):S641-S652 Gregory G. Knapik, Ehud Mendel, William S. Marras	Association between spinal loads and the psychophysical determination of maximum acceptable force during pushing tasks Ergonomics, 55(9):1104-1114 Peter Le, Jonathan S. Dufour, Heath Monat, Joseph Rose, Zach Huber, Emma Alder, Radin Zaid Radin Umar, Bryan Hennessey, Mohini Dutt, William S. Marras Developing physical exposure-based back injury risk models applicable to manual handling jobs in distribution centers Journal of Occupational and Environmental Hygiene, 9:450-459 Steven A. Lavender, William S. Marras, Sue A. Ferguson, Riley E. Splittstoesser, Gang Yang Biomechanical, psychosocial and individual risk factors predicting low back functional impairment among furniture distribution employees Clinical Biomechanics, 27:117-123 Sue A. Ferguson, W. Gary Allread, Deborah L. Burr, Catherine Heaney, William S. Marras Musculoskeletal disorder risk during automotive assembly: Current vs. seated Applied Ergonomics, 43:671-678 Sue A. Ferguson, William S. Marras, W. Gary Allread, Gregory G. Knapik, Riley E. Splittstoesser	A strategy for human factors/ergonomics: Developing the discipline and profession Ergonomics, 55(4):377-395 Jan Dul, Ralph Bruder, Peter Buckle, Pascale Carayon, Pierre Falzon, William S. Marras, John R. Wilson, Bas van der Doelen Response to the commentary, 'A question of our marketing or our preconceptions' Ergonomics, 55(12):1618-1620 Jan Dul, Ralph Bruder, Peter Buckle, Pascale Caryon, Pierre Falzon, William S. Marras, John R. Wilson, Bas Van der Boelen
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2011	The biochemical response to biomechanical tissue loading on the low back during physical work exposure Clinical Biomechanics, 26(5): 431-437 Gang Yang, William S. Marras, Thomas M. Best		Musculoskeletal disorder risk as a function of vehicle rotation angle during assembly tasks Applied Ergonomics, 42:699-710 Sue A. Ferguson, William S. Marras, W. Gary Allread, Gregory G. Knapik, Kimberly A. Vandlen, Riley E. Splittstoesser, Gang Yang	Effects of postural and visual stressors on myofascial trigger point development and motor unit rotation during computer work Journal of Electromyography and Kinesiology, Volume 21(1):41-48 Jeffrey A. Hoyle, William S. Marras, James E. Sheedy, Dennis E. Hart
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2010	Instrumentation for measuring dynamic spinal load moment exposures in the workplace Journal of Electromyography and Kinesiology, 20(1):1-9 William S. Marras, Steven A. Lavender, Sue A. Ferguson, Riley E. Splittstoesser, Gang Yang, Pete Schabo	Quantitative dynamic measures of physical exposure: Predict low back functional impairment Spine, 35(8):914-923 William S. Marras, Steven A. Lavender, Sue A. Ferguson, Riley E. Splittstoesser, Gang Yang	Quantitative biomechanical workplace exposure measures: Distribution centers Journal of Electromyography and Kinesiology, 20(5):813-822 William S. Marras, Steven A. Lavender, Sue A. Ferguson, Riley E. Splittstoesser, Gang Yang Investigating reduced bag weight as an effective risk mediator for mason tenders Applied Ergonomics, 41(6):822-831 Kermit G. Davis, S.E. Kotowski, J. Albers, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2009		Quantification of a meaningful change in low back functional impairment Spine, 34(19):2060-2065 Sue A. Ferguson, William S. Marras, Deborah L. Burr, Stephen Woods, Ehud Mendel, Purnendu Gupta	Lumbar spine forces during manoeuvring of ceiling-based and floor-based patient transfer devices Ergonomics, 52(3):384-397 William S. Marras, Gregory G. Knapik, Sue A. Ferguson Loading along the lumbar spine as influenced by speed, control, load magnitude, and handle height during pushing Clinical Biomechanics, 24(2):155-163 William S. Marras, Gregory G. Knapik, Sue A. Ferguson Spine loading at different lumbar levels during pushing and pulling Ergonomics, 52(1):60-70 Gregory G. Knapik, William S. Marras	National Occupational Research Agenda (NORA) future directions in occupational musculoskeletal disorder health research Applied Ergonomics, 40:15-22 William S. Marras, Robert G. Cutlip, Susan E. Burt, Thomas R. Waters Point of view Spine, 34(4):322 William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2008				A critical review of a pivotal scientific contribution: Liles and associates 24 years later Human Factors, 50(3):393-396 William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2007	A comparison of fatigue failure responses of old versus middle-aged lumbar motion segments in simulated flexed lifting Spine, 32(17)1832-1839 Sean Gallagher, William S. Marras, Alan S. Litsky, Deborah Burr, John Landoll, Velimir Matkovic Estimation of the dynamic spinal forces using a recurrent fuzzy neural network IEEE Transactions on Systems, Man, and Cybernetics – Part B: Cybernetics, 37(1):100-109 Yanfeng Hou, Jacek M. Zurada, Waldemar Karwowski, William S. Marras, Kermit Davis	Low back pain and the workplace Journal of the American Medical Association, 298(4):403-404 Arun Garg, Fred Gerr, Jeffrey N. Katz, William S. Marras, Barbara Silverstein Low back pain recurrence in occupational environments Spine, 32(21):2387-2397 William S. Marras, Sue A. Ferguson, Deborah Burr, Pete Schabo, Anthony Maronitis	The influence of lift frequency, lift duration, and work experience on discomfort reporting Ergonomics, 50(3):396-409 Julia Parakkat, Gang Yang, Anne-Marie Chany, Deborah Burr, William S. Marras Spinal loading during manual materials handling in a kneeling posture Journal of Electromyography and Kinesiology, 17:25-34 Riley E. Splittstoesser, Gang Yang, Greg G. Knapik, David R. Trippany, Jeff A. Hoyle, Parul Lahoti, Sahika Vatan Korkmaz, Carolyn M. Sommerich, Steven A. Lavender, William S. Marras The effects of work experience, lift frequency and exposure duration on low back muscle oxygenation Clinical Biomechanics, 22:21-27 Gang Yang, Anne-Marie Chany, Julia Parakkat, Deborah Burr, William S. Marras Modification of an EMG-assisted biomechanical model for pushing and pulling International Journal of Industrial Ergonomics, 37(11-12):825-831 Erich W. Theado, Gregory G. Knapik, William S. Marras The effect of phone design on upper extremity discomfort and muscle fatigue Human Factors, 49(4):602-618 Anne-Marie Chany, William S. Marras, Deborah L. Burr	Identification of key variables using fuzzy average with fuzzy cluster distribution IEEE Transactions on Fuzzy Systems, 15(4):673-685 Yanfeng Hou, Jacek M. Zurada, Waldemar Karwowski, William S. Marras, Kermit Davis
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2006	A fuzzy relational rule network modeling of electromyographical activity of trunk muscles in manual lifting based on trunk angles, moments, pelvic tilt and rotation angles International Journal of Industrial Ergonomics, 36(10):847-859 Waldemar Karwowski, Adam Gaweda, William S. Marras, Kermit G. Davis, Jozef Zurada, David Rodrick An exploratory study of loading and morphometric factors associated with specific failure modes in fatigue testing of lumbar motion segments Clinical Biomechanics, 21:228-234 Sean Gallagher, William S. Marras, Alan S. Litsky, Deborah L. Burr		Baggage handling in an airplane cargo hold: An ergonomic intervention study International Journal of Industrial Ergonomics, 36:301-312 Sahika Vatan Korkmaz, Jeff A. Hoyle, Gregory G. Knapik, Riley E. Splittstoesser, Gang Yang, David R. Trippany, Parul Lahoti, Carolyn M. Sommerich, Steven A. Lavender, William S. Marras Spine loading as a function of lift frequency, exposure duration, and work experience Clinical Biomechanics, 21(2):345-352 William S. Marras, Julia Parakkat, Anne-Marie Chany, Gang Yang, Deborah L. Burr, Steven A. Lavender Changes in spine loading patterns throughout the workday as a function of experience, lift frequency and personality The Spine Journal, 6:296-305 Anne-Marie Chany, Julia Parakkat, Gang Yang, Deborah L. Burr, William S. Marras	Myofascial trigger point development from visual and postural stressors during computer work Journal of Electromyography and Kinesiology, 16:115-124 Delia E. Treaster, William S. Marras, Deborah Burr, James E. Sheedy, Dennis E. Hart. Prevention of work related musculoskeletal disorders Proceedings of the Human Factors and Ergonomics Society 50th Annual Meeting, 50(13):1299-1302 Sue A. Ferguson, Barbara Silverstein, Martin Cherniack, Arun Garg, Steven A. Lavender Does personality affect the risk of developing musculoskeletal disorders? Theoretical Issues in Ergonomics Science, 7(2):149-167 W. Gary Allread, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2005	The prediction of lumbar spine geometry: Method development and validation Clinical Biomechanics, 20:455-464 Naira Campbell-Kyureghyan, William S. Marras, Deborah Burr, Michael J. Jorgensen Load spatial pathway and spine loading: How does lift origin and destination impact low back response? Ergonomics, 48(8):1031-1046 Kermit G. Davis, William S. Marras The future of research in understanding and controlling work-related low back disorder Ergonomics, 48(5):464-47 William S. Marras Torso flexion loads and the fatigue failure of human lumbrosacral motion segments Spine, 30(20):2265-2273 Sean Gallagher, William S. Marras, Alan S. Litsky, Deborah Burr Sagittal plane moment arms of the female lumbar region rectus abdominis in an upright neutral torso posture Clinical Biomechanics, 20(3):242-246 Michael J. Jorgensen, William S. Marras, F.W. Smith, M.H. Pope	Functional impairment as a predictor of spine loading Spine, 30(7):729-737 William S. Marras, Sue. A. Ferguson, Deborah Burr, Kermit G. Davis, Purnendu Gupta Differences among outcome measures in occupational low back pain Journal of Occupational Rehabilitation, 15(3):329-341 Sue A. Ferguson, William S. Marras, Deborah L. Burr Workplace design guidelines for asymptomatic vs. low back injured workers Applied Ergonomics, 36(1):85-95 Sue A. Ferguson, William S. Marras, Deborah L. Burr		The effect of ergonomic interventions in healthcare facilities on musculoskeletal disorders American Journal of Industrial Medicine, 48:338-347 Kaori Fujishiro, Jean L. Weaver, Catherine A. Heaney, Christopher A. Hamrick, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2004	Classification of jobs with risk of low back disorders by applying data mining techniques Occupational Ergonomics, 4(4):291-305 Jozef Zurada, Waldemar Karwowski, William S. Marras	Revised protocol for the kinematic assessment of impairment The Spine Journal, 4(2):163-169 Sue A. Ferguson, William S. Marras Spine loading in patients with low back pain during asymmetric lifting exertions The Spine Journal, 4(1):64-75 William S. Marras, Sue A. Ferguson, Deborah Burr, Kermit G. Davis, Purnendu Gupta Differences in motor recruitment and resulting kinematics between low back pain patients and asymptomatic participants during lifting exertions Clinical Biomechanics, 19(10):992-999 Sue A. Ferguson, William S. Marras, Deborah L. Burr, Kermit G. Davis, Purnendu Gupta The influence of individual low back health status on workplace trunk kinematics and risk of low back disorder Ergonomics, 47(11):1226-1237 Sue A. Ferguson, William S. Marras, Deborah L. Burr	Physical demands and low-back injury risk among children and adolescents working on farms Journal of Agricultural Safety and Health, 10(4):257-274 W. Gary Allread, Jay R. Wilkins, Tom Waters, William S. Marras	State-of-the art research perspectives on musculoskeletal disorder causation and control: The need for an integrated understanding of risk Journal of Electromyography and Kinesiology, 14(1):1-5 William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2003	Effect of torso flexion on the lumbar torso extensor muscle sagittal plane moment arms The Spine Journal, 3(5):363-369 Michael J. Jorgensen, William S. Marras, Purnendu Gupta, Thomas R. Waters Cross-sectional area of the lumbar back muscles as a function of torso flexion Clinical Biomechanics, 18(4):280-286 Michael J. Jorgensen, William S. Marras, Purnendu Gupta, Thomas R. Waters A neuro-fuzzy model for estimating electromyographical activity of trunk muscles due to manual lifting Ergonomics, 46(1-3):285-309 Wookgee Lee, Waldemar Karwowski, William S. Marras, David Rodrick The case for cumulative trauma in low back disorders The Spine Journal, 3(3):177-179 William S. Marras Gender influences on spine loads during complex lifting The Spine Journal, 3(2):93-99 William S. Marras, Kermit G. Davis, Michael J. Jorgensen Partitioning the contribution role of biomechanical, psychosocial, and individual risk factors in the development of spine loads The Spine Journal, 3(5):331-338 Kermit G. Davis, William S. Marras	Validity and reliability of sincerity test for dynamic trunk motions Disability and Rehabilitation, 25(4-5):236-241 Sue A. Ferguson, Sean Gallagher, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2002	Spine loading as a function of gender Spine, 27(22):2514-2520 William S. Marras, Kermit G. Davis, Michael J. Jorgensen The impact of mental processing and pacing on spine loading Volvo Award for Low Back Pain Research Spine, 27(23):2645-2653 Kermit P. Davis, William S. Marras, Catherine A. Heaney, Thomas R. Waters, Purnendu Gupta. Kinematic contribution and synchronization of the trunk, hip, and knee during free-dynamic lifting Occupational Ergonomics, 3(2):99-103 Kermit G. Davis, Riley E. Splittstoesser, William S. Marras		Spinal loading when lifting from industrial storage bins Ergonomics, 45(6):399-414 Sue A. Ferguson, Laura L. Gaudes-MacLaren, William S. Marras, Thomas R. Waters, Kermit G. Davis Grip force and muscle activity differences due to glove type AIHA Journal, 63(3):269-274 Kimberly Kovacs, Riley Splittstoesser, Anthony Maronitis, William S. Marras Effects of posture on dynamic back loading during a cable lifting task Ergonomics, 45(5):380-398 Sean Gallagher, William S. Marras, Kermit G. Davis, Kimberly Kovacs A study of female Mexican anthropometric measures useful for workstation design in light manufacturing facilities AIHA Journal, 63(3):300-304 Steven A. Lavender, William S. Marras, R.J. Sabol	Biomechanical aspects of work-related musculoskeletal disorders Theoretical Issues in Ergonomic Science, 2(2):153-217 Robert G. Radwin, William S. Marras, Steven A. Lavender
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2001	Female and male trunk geometry: Size and prediction of the spine loading trunk muscles derived from MRI Clinical Biomechanics, 16(1):38-46 William S. Marras, Michael J. Jorgensen, Kevin P. Granata, J. W. Wiand Quantification of trunk motion in response to complex platform perturbations while holding weights in an upright posture Biomedical Engineering, Applications, Basis and Communications, 13(1):33-46 Mohamad Parnianpour, Kaushik Ghosh, K. Barin, William S. Marras A non-MVC EMG normalization technique for the trunk musculature: Part 1. Method development Journal of Electromyography and Kinesiology, 11(1):1-9 William S. Marras, Kermit G. Davis A non-MVC EMG normalization technique for the trunk musculature: Part 2. Validation and use to predict spinal loads Journal of Electromyography and Kinesiology, 11(1):11-18 William S. Marras, Kermit G. Davis, Anthony B. Maronitis MRI-derived moment-arms of the female and male spine loading muscles Clinical Biomechanics, 16(3):182-193 Michael J. Jorgensen, William S. Marras, Kevin P. Granata, J. W. Wiand	Spine loading characteristics of patients with low back pain compared with asymptomatic individuals Spine, 26(23):2566-2574 William S. Marras, Kermit G. Davis, Sue A. Ferguson, Benjamin R. Lucas, Purnendu Gupta Predicting recovery using continuous low back pain outcome measures The Spine Journal, 1(1):57-65 Sue A. Ferguson, Purnendu Gupta, William S. Marras, Catherine Heaney Localized oxygen use of healthy and low back pain individuals during controlled trunk movements Journal of Spinal Disorders, 14(2):150-158 Kimberly M. Kovacs, William S. Marras, Alan S. Litsky, Purnendu Gupta, Sue A. Ferguson Spine biomechanics, government regulation, and prevention of occupational low back pain The Spine Journal, 1(3):163-165 William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
2000	The influence of psychosocial stress, gender, and personality on mechanical loading of the lumbar spine Spine, 25(23):3045-3054 William S. Marras, Kermit G. Davis, Catherine A. Heaney, Anthony B. Maronitis, W. Gary Allread Cost-benefit of muscle co-contraction in protecting against spinal instability Spine, 25(11):1398-1404 Kevin P. Granata, William S. Marras Occupational low back disorder causation and control Ergonomics, 43(7):880-902 William S. Marras The effects of motion on trunk biomechanics Clinical Biomechanics, 15(10):703-717 Kermit G. Davis, William S. Marras An investigation of perceived exertion via whole body exertion and direct muscle force indicators during the determination of the maximum acceptable weight of lift Ergonomics, 43(2):143-159 Kermit G. Davis, Michael J. Jorgensen, William S. Marras Prospective validation of a low-back disorder risk model and assessment of ergonomic interventions associated with manual materials handling tasks Ergonomics, 43(11):1866-1886 William S. Marras, W. Gary Allread, Deborah L. Burr, Fadi A. Fathallah	Longitudinal quantitative measures of the natural course of low back pain recovery Spine, 25(15):1950-1956 Sue A. Ferguson, William S. Marras, Purnendu Gupta Impairment magnification during dynamic trunk motions Spine, 25(5):587-595 William S. Marras, Karen E. K. Lewis, Sue A. Ferguson, Mohamad Parnianpour	Finger motion, wrist motion, and tendon travel as a function of keyboard angles Clinical Biomechanics, 15(7):489-498 John E. Nelson, Delia E. Treaster, William S. Marras An assessment of alternate keyboards using finger motion, wrist motion, and tendon travel Clinical Biomechanics, 15(7):499-503 Delia E. Treaster, William S. Marras Measuring trunk motions in industry: Variability due to task factors, individual differences, and the amount of data collected Ergonomics, 43(6):691-701 W. Gary Allread, William S. Marras, Deborah L. Burr Assessment of the relationship between box weight and trunk kinematics: Does a reduction in box weight necessarily correspond to a decrease in spinal loading? Human Factors, 42(2):195-208 Kermit G. Davis, William S. Marras Effect of foot movement and an elastic lumbar back support on spinal loading during free-dynamic symmetric and asymmetric lifting exertions Ergonomics, 43(5):653-668 William S. Marras, Michael J. Jorgensen, Kermit G. Davis The effect of lumbar back support tension on trunk muscle activity Clinical Biomechanics, 15(4):292-294 Michael J. Jorgensen, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1999	Variation in spinal load and trunk dynamics during repeated lifting exertions Clinical Biomechanics, 14(6):367-375 Kevin P. Granata, William S. Marras, Kermit G. Davis Regression models for predicting peak and continuous three-dimensional spinal loads during symmetric and asymmetric lifting tasks Human Factors, 41(3):373-388 Fadi A. Fathallah, William S. Marras, Mohamad Parnianpour Variability in spine loading model performance Clinical Biomechanics, 14(8):505-514 William S. Marras, Kevin P. Granata, Kermit G. Davis Relation between spinal load factors and the high-risk probability of occupational low-back disorder Ergonomics, 42(9):1187-1199 Kevin P. Granata, William S. Marras	The quantification of low back disorder using motion measures: Methodology and validation Spine, 24(20):2091-2100 William S. Marras, Sue A. Ferguson, Purnendu Gupta, Smarajit Bose, Mohamad Parnianpour, Jung-Yong Kim, Robert R. Crowell	A comprehensive analysis of low-back disorder risk and spinal loading during the transferring and repositioning of patients using different techniques Ergonomics, 42(7):904-926 William S. Marras, Kermit G. Davis, Bryan C. Kirking, Patricia K. Bertsche The effectiveness of commonly used lifting assessment methods to identify industrial jobs associated with elevated risk of low-back disorders Ergonomics, 42(1):229-245 William S. Marras, L.J. Fine, Sue A. Ferguson, Thomas R. Waters Significance of biomechanical and physiological variables during the determination of maximum acceptable weight of lift Ergonomics, 42(9):1216-1232 Michael J. Jorgensen, Kermit G. Davis, Bryan C. Kirking, Karen E.K. Lewis, William S. Marras The effects of box features on spine loading during warehouse order selecting Ergonomics, 42(7):980-996 William S. Marras, Kevin P. Granata, Kermit G. Davis, W. Gary Allread, Michael J. Jorgensen Spine loading and trunk kinematics during team lifting Ergonomics, 42(10):1258-1273 William S. Marras, Kevin P. Granata, Kermit G. Davis, Brian C. Kirking
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1998	Trunk muscle activities during asymmetric twisting motions Journal of Electromyography and Kinesiology, 8(4):247-256 William S. Marras, Kermit G. Davis, Kevin P. Granata The effect of electromyogram-force relationships and method of gain estimation on the predictions of an electromyogram-driven model of spinal loading Spine, 23(4):423-429 Patrick J. Sparto, Mohamad Parnianpour, William S. Marras, Kevin P. Granata, Tom E. Reinsel, Sheldon R. Simon An assessment of complex spinal loads during dynamic lifting tasks Spine, 23(6):706-716 Fadi A. Fathallah, William S. Marras, Mohamad Parnianpour The role of complex, simultaneous trunk motions in the risk of occupationally-related low back disorders Spine, 23(9):1035-1042 Fadi A. Fathallah, William S. Marras, Mohamad Parnianpour Evaluation of spinal loading during lowering and lifting Clinical Biomechanics, 13(3):141-152 Kermit G. Davis, William S. Marras, Thomas R. Waters		Spade design, lumbar motions, risk of low-back injury and digging posture Occupational Ergonomics, 1(3):157-172 Robert S. Bridger, Patrick J. Sparto, William S. Marras Reduction of spinal loads through the use of handles Ergonomics, 41(8):1155-1168 Kermit G. Davis, William S. Marras, Thomas R. Waters Spine loading during asymmetric lifting using one vs. two hands Ergonomics, 41(6):817-834 William S. Marras, Kermit G. Davis A method for developing biomechanical profiles of hand-intensive tasks Clinical Biomechanics, 13:261-271 Carolyn M. Sommerich, William S. Marras, Mohamad Parnianpour
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1997	Spine loading during trunk lateral bending motions Journal of Biomechanics, 30(7):697-703 William S. Marras, Kevin P. Granata The development of an EMG-assisted model to assess spine loading during whole-body free-dynamic lifting Journal of Electromyography and Kinesiology, 7(4):259-268 William S. Marras, Kevin P. Granata A method for measuring external spinal loads during unconstrained free-dynamic lifting Journal of Biomechanics, 30(9):975-978 Fadi A. Fathallah, William S. Marras, Mohamad Parnianpour, Kevin P. Granata Neuromuscular trunk performance and spinal loading during a fatiguing isometric trunk extension with varying torque requirements Journal of Spinal Disorders, 10(2):145-156 Patrick J. Sparto, Mohamad Parnianpour, William S. Marras, Kevin P. Granata, Tom E. Reinsel, Sheldon R. Simon Changes in trunk dynamics and spine loading during repeated trunk exertions Spine, 22(21):2564-2570 William S. Marras, Kevin P. Granata The effect of complex dynamic lifting and lowering characteristics on trunk muscles recruitment Journal of Occupational Rehabilitation, 7(3):121-138 Fadi A. Fathallah, William S. Marras, Mohamad Parnianpour	Dynamic low back functional motion capacity evaluation Journal of Occupational Rehabilitation, 6(4):203-214 Sue A. Ferguson, William S. Marras, Robert R. Crowell	Biomechanical assessment of lifting dynamics, muscle activity and spinal loads while using three different styles of lifting belt Clinical Biomechanics, 12(2):107-115 William S. Marras, Kermit G. Davis, Bryan C. Kirking, Kevin P. Granata A neural network-based system for classification of industrial jobs with respect to risk of low back disorders due to workplace design Applied Ergonomics, 28(1):49-58 Jozef Zurada, Waldemar Karwowski, William S. Marras A literature review of low back disorder surveillance measures and risk factors Clinical Biomechanics, 12(4):211-226 Sue A. Ferguson, William S. Marras Spine loading and probability of low back disorder risk as a function of box location on a pallet International Journal of Human Factors in Manufacturing, 7(4):323-336 William S. Marras, Kevin P. Granata, Kermit G. Davis, W. Gary Allread, Michael J. Jorgensen Influence of lift moment in determining MAWL Human Factors, 39(2):312-322 Kermit G. Davis, Bryan C. Kirking, Laura L. Gaudes, Jaehwan Yang, William S. Marras An ergonomic comparison of industrial spray paint guns International Journal of Industrial Ergonomics, 19:425-435 Chi-Chang Lee, J. Eric Nelson, Kermit G. Davis, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1996	Quantitative assessment of the control capability of the trunk muscles during oscillatory bending motion under a new experimental protocol Clinical Biomechanics, 11(7):385-391 Jung-Yong Kim, Mohamad Parnianpour, William S. Marras A method for measuring external loads during dynamic lifting exertions Journal of Biomechanics, 29(9):1219-1222 Kevin P. Granata, William S. Marras, Fadi A. Fathallah Intra-abdominal pressure during trunk extension motions Clinical Biomechanics, 11(5):267-274 William S. Marras, Gary A. Mirka		Trunk kinematics of one-handed lifting and effects of asymmetry and load weight Ergonomics, 39(2):322-334 W. Gary Allread, William S. Marras, Mohamad Parnianpour Observations on the relationship between key strike force and typing speed American Industrial Hygiene Association Journal, 57:1109-1114 Carolyn M. Sommerich, William S. Marras, Mohamad Parnianpour A quantitative description of typing biomechanics Journal of Occupational Rehabilitation, 6(1):33-55 Carolyn M. Sommerich, William S. Marras, Mohamad Parnianpour
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1995	The influence of trunk muscle coactivity upon dynamic spinal loads Spine, 20(8):913-919 Kevin P. Granata, William S. Marras An EMG-assisted model of trunk loading during free-dynamic lifting Journal of Biomechanics, 28(11):1309-1317 Kevin P. Granata, William S. Marras A biomechanical assessment and model of axial twisting in the thoracolumbar spine Spine, 20(13):1440-1451 William S. Marras, Kevin P. Granata Biomechanical risk factors for occupationally related low back disorders Ergonomics, 38(2):377-410 William S. Marras, Steven A. Lavender, Sue E. Leurgans, Fadi A. Fathallah, W. Gary Allread, Sue A. Ferguson, Sudhakar L. Rajulu The classification of anatomic and symptom-based low back disorders using motion measure models Spine 20(23):2531-2546 William S. Marras, Mohamad Parnianpour, Sue A. Ferguson, Jung-Yong Kim, Robert R. Crowell, Smarajit Bose, Sheldon R. Simon The effects of a temporal warning signal on the biomechanical preparations for sudden loading Journal of Electromyography and Kinesiology, 5(1):45-56 Steven A. Lavender, William S. Marras Diurnal variation in trunk kinematics during a typical work shift Journal of Spinal Disorders, 8(1):20-25 Fadi A. Fathallah, William S. Marras, Patrick L. Wright		Quantification of wrist motions during scanning Human Factors, 37(2):412-423 William S. Marras, Richard W. Marklin, Gerald J. Greenspan, Katherine R. Lehman
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1994	The effect of task asymmetry, age and gender on dynamic trunk motion characteristics during repetitive trunk flexion and extension in a large normal population IEEE Transactions, 2(3):137-146 William S. Marras, Mohamad Parnianpour, Jung-Yong Kim, Sue A. Ferguson, Robert R. Crowell, Sheldon R. Simon Dynamic biomechanical modelling of symmetric and asymmetric lifting tasks in restricted postures Ergonomics, 37(8):1289-1310 Sean Gallagher, Christopher A. Hamrick, Arnold C. Love, William S. Marras		The effects of mats on back and leg fatigue Applied Ergonomics, 25(1):29-34 Jung-Yong Kim, Carol Stuart-Buttle, William S. Marras The use of turnover rate as a passive surveillance indicator for potential low back disorders Ergonomics, 37(6):971-978 Steven A. Lavender, William S. Marras Industrial wrist motions and incidence of hand/wrist cumulative trauma disorders Ergonomics, 37(9):1449-1459 Richard W. Schoenmarklin, William S. Marras, Sue E. Leurgans
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1993	The development of response strategies in preparation for sudden loading to the torso Spine, 18(14):2097-2105 Steven A. Lavender, William S. Marras, R. Allen Miller Electromyographic studies of the lumbar trunk musculature during the generation of low-level trunk acceleration Journal of Orthopaedic Research, 11(6):811-817 William S. Marras, Gary A. Mirka Quantification and classification of low back disorders based on trunk motion Vienna Physical Medicine Award European Journal of Physical Medicine, 3(6):218-235 William S. Marras, Mohamad Parnianpour, Sue A. Ferguson, Jung-Yong Kim, Robert R. Crowell, Sheldon R. Simon A stochastic model of trunk muscle coactivation during trunk bending Volvo Award for Low Back Pain Research Spine, 18(11)1396-1409 Gary A. Mirka, William S. Marras An EMG-assisted model of loads on the lumbar spine during asymmetric trunk extensions Journal of Biomechanics, 26(12):1429-1438 Kevin P. Granata, William S. Marras Dynamic measures of low back performance American Industrial Hygiene Association Ergonomics Guide, ISBN 0-932627-52-8, Stock No. 174-ER-93 William S. Marras, J.D. McGlothlin, D.R. McIntyre, M.C. Nordin, K.H.E. Kroemer The role of dynamic three-dimensional trunk motion in occupationally-related low back disorders: The effects of workplace factors, trunk position, and trunk motion characteristics on risk of injury Spine, 18(5):617-628 William S. Marras, Steven A. Lavender, Sue E. Leurgans, Sudhakar L. Rajulu, W. Gary Allread, Fadi A. Fathallah, Sue A. Ferguson		Wrist motions in industry Ergonomics, 36(4):341-351 William S. Marras, Richard W. Schoenmarklin Anthropometry of industrial populations Ergonomics, 36(4):371-378 William S. Marras, Jung-Yong Kim Occupational risk factors associated with soft tissue disorders of the shoulder: A review of recent investigations in the literature Ergonomics, 36(6):697-717 Carolyn M. Sommerich, James D. McGlothlin, William S. Marras Dynamic capabilities of the wrist joint in industrial workers International Journal of Industrial Ergonomics, 11(3):207-224 Richard W. Schoenmarklin, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1992	Accuracy of a three dimensional lumbar motion monitor for recording dynamic trunk motion characteristics International Journal of Industrial Ergonomics, 9(1):75-87 William S. Marras, Fadi A. Fathallah, Robert J. Miller, Shelby W. Davis, Gary A. Mirka Temporal patterns of trunk muscle activity throughout a dynamic, asymmetric lifting motion Human Factors, 34(2):215-230 Carolyn M. Sommerich, William S. Marras Quantification of back motion during asymmetric lifting Ergonomics, 35(7/8):845-859 Sue A. Ferguson, William S. Marras, Thomas R. Waters A comprehensive evaluation of trunk response to asymmetric trunk motion Spine, 17(3):318-326 William S. Marras, Gary A. Mirka Quantification of velocity coupling during asymmetric lifting International Journal of Industrial Ergonomics, 10:207-215 Sue A. Ferguson, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1991	A three dimensional motion model of loads on the lumbar spine, part I: Model structure Human Factors, 33(2):123-137 William S. Marras, Carolyn M. Sommerich A three dimensional motion model of loads on the lumbar spine, part II: Model validation Human Factors, 33(2):139-149 William S. Marras, Carolyn M. Sommerich		A model for the objective assessment of automobile restraint systems International Journal of Industrial Ergonomics, 8(1):59-65 William S. Marras The effects of method of use, tool design, and roof height on trunk muscle activities during underground scaling bar use Ergonomics, 34(2):221-232 William S. Marras, Steven A. Lavender
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1990	Lumbar motion response to a constant load velocity lift Human Factors, 32(4):493-501 Gary A. Mirka, William S. Marras Three dimensional dynamic motor performance of the normal trunk International Journal of Industrial Ergonomics, 6(3):211-224 William S. Marras, Sue A. Ferguson, Sheldon R. Simon Muscle activities during asymmetric trunk angular accelerations Journal of Orthopaedic Research, 8(6):824-832 William S. Marras, Gary A. Mirka	Interdisciplinary perspectives on mechanisms and management of low back pain Rhode Island Medical Journal, 73(1):21-31 David A. Ahern, Michael J. Follick, Phillip Lucas, John Parziale, William S. Marras, Dianne L. Wilkin, Steven Wolf	An electromyographic analysis of an ergonomic intervention with the jack leg drill Applied Ergonomics, 21(2):90-100 Steven A. Lavender, William S. Marras Industrial electromyography International Journal of Industrial Ergonomics, 6(1):89-93 William S. Marras	On the measurement of human strength International Journal of Industrial Ergonomics, 6:199-210 Karl H.E. Kroemer, William S. Marras, James D. McGlothlin, Donald R. McIntyre, Margareta C. Nordin
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1989	The effects of preview and task symmetry on trunk muscle response to sudden loading Human Factors, 31(1):101-115 Steven A. Lavender, Gary A. Mirka, Richard W. Schoenmarklin, Carolyn M. Sommerich, Sudhakar L. Rajulu, William S. Marras Trunk strength during asymmetric trunk motion Human Factors, 31(6):667-677 William S. Marras, Gary A. Mirka SIMULIFT: A simulation model of human trunk motion during lifting Spine, 14(1):5-11 Charles H. Reilly, William S. Marras		An experimental analysis of railroad spike maul methods Human Factors, 31(3):335-344 Beth A. Gray, William S. Marras Effects of handle angle and work orientation on hammering: I. Wrist motion and hammering performance Human Factors, 31(4):397-411 Richard W. Schoenmarklin, William S. Marras Effects of handle angle and work orientation on hammering: II. Muscle fatigue and subjective ratings of body discomfort Human Factors, 31(4):413-420 Richard W. Schoenmarklin, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1988	Networks of internal trunk loading activities under controlled trunk motion conditions Spine, 13(6):661-667 William S. Marras, Charles H. Reilly Predictions of forces acting upon the lumbar spine under isometric and isokinetic conditions: A model-experiment comparison International Journal of Industrial Ergonomics, 3(1):19-27 William S. Marras		Risks of hand tool injury in U.S. underground mining from 1978 through 1983, part I: Coal mining Journal of Safety Research, 19:71-85 William S. Marras, T.G. Bobick, Steven A. Lavender, Thomas H. Rockwell, R.L. Lundquist Lifting in stooped and kneeling postures: Effects on lifting capacity, metabolic costs and electromyography of eight trunk muscles International Journal of Industrial Ergonomics, 3(1):65-76 Sean Gallagher, William S. Marras, T.G. Bobick Risks of hand tool injury in U.S. underground mining from 1978 through 1983, part II: Metal-nonmetal mining Journal of Safety Research, 19:115-124 William S. Marras, Steven A. Lavender, T.G. Bobick, Thomas H. Rockwell, R.L. Lundquist
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1987	Trunk force development during static and dynamic lifts Human Factors, 29(1):19-29 William S. Marras, Sudhakar L. Rajulu, Patricia E. Wongsam Trunk motion during lifting: Temporal relations among loading factors International Journal of Industrial Ergonomics, 1(3):159-167 William S. Marras Trunk loading and expectation Ergonomics, 30(3):551-562 William S. Marras, Sudhakar L. Rajulu, Steve A. Lavender Quantitative trunk muscle electromyography during lifting at different speeds International Journal of Industrial Ergonomics, 1(3):219-229 Jung-Yong Kim, William S. Marras.		Measurement of seat and back pressure distributions Human Factors, 29(5):563-575 Delia Treaster, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1986	Trunk motion during lifting: The relative cost International Journal of Industrial Ergonomics, 1(2):103-113 William S. Marras, Patricia E. Wongsam, Sudhakar L. Rajulu	Flexibility and velocity of the normal and impaired lumbar spine Archives of Physical Medicine and Rehabilitation, 67:213-217 William S. Marras, Patricia E. Wongsam	An experimental evaluation of method and tool effects in spike maul use Human Factors, 28(3):267-281 William S. Marras, Thomas H. Rockwell An evaluation of tool design and method of use of railroad leverage tools on back stress and tool performance Human Factors, 28(3):303-315 Thomas H. Rockwell, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1985	The force-velocity relation and intra-abdominal pressure during lifting activities Ergonomics, 28(3):603-613 William S. Marras, Robert L. Joynt, Albert I. King
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1984	Measurements of loads on the lumbar spine under isometric and isokinetic conditions Spine, 9(2):176-188 William S. Marras, Albert I. King, Robert L. Joynt
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1981	Evaluation of maximal and submaximal static muscle exertions Human Factors, 23(6):643-654 Karl H.E. Kroemer, William S. Marras
	Spine Research & Modeling	Clinical Research	Applied Research	Miscellaneous
1980	Towards an objective assessment of the "Maximal Voluntary Contraction" component in routine muscle strength measurements European Journal of Applied Physiology, 45:1-9 Karl H.E. Kroemer, William S. Marras		A method to evaluate human factors/ergonomics design variables of distress signals Human Factors, 22(4):389-400 William S. Marras, Karl H.E. Kroemer Ergonomics of visual emergency signals Journal of Applied Ergonomics, 11(3):137-144 Karl H.E. Kroemer, William S. Marras

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