Chronological Order
Surveillance
Laboratory Investigations
Biomechanical Modeling
Clinical Studies
2007
Hou, Y., Zurada, J.M.,Karwowski, W., Marras, W.M., and Davis, K. (2007)
" Identification of Key Variables Using Fuzzy Average with Fuzzy Cluster Distribution, " IEEE Transactions on Fuzzy Systems, 15(4), 673-685.
Parakkat, J.,Yang, G., Chany, A-M., Burr, D., and Marras, W.S. (2007)
" The Influence of Lift Frequency, Lift Duration, and Work Experience on Discomfort Reporting, " Ergonomics, 50(3), 396-409.
Splittstoesser, R.E., Yang, G., Knapik, GG, Trippany, D.R., Hoyle, J.A., Lahoti, P., Korkmaz, S.V., . Sommerich, C.M., Lavender, S.A., and Marras, W.S. (2007) "Spinal Loading During Manual Materials Handling in a Kneeling Posture," Journal of Electromyography and Kinesiology, 17, 25-34.
Yang, G., Chany, A-M., Parakkat, J., Burr, D., and Marras, W.S. (2007) “The Effects of Work Experience, Lift Frequency and Exposure Duration on Low Back Muscle Oxygenation.” Clinical Biomechanics, 22, 21-27.
Gallagher, S., Marras, W.S., Litsky, A.S., Burr, D., Landoll, J, and Matkovic, V., (2007) “A Comparison of Fatigue Failure Responses of Old Versus Middle-Aged Lumbar Motion Segments in Simulated Flexed Lifting,” Spine, 32(17), 1832-1839.
Hou, Y., Aurada, JM, Karwowski, W, Marras, W.S., and Davis, K. (2007) “Estimation of the Dynamic Spinal Forces Using A Recurrent Fuzzy Neural Network” IEEE Transactions on Systems, Man, and Cybrenetics – Part B: Cybrenetics, 37(1), 100-109.
Theado, E.W., Knapik, G.G., and Marras, W.S. (2007) “Modification of an EMG-assisted biomechanical model for pushing and pulling,” International Journal of Industrial Ergonomics, 37(11-12), 825-831.
Chany, A.M.L., Marras, W.S., Burr, D.L. (2007) “The Effect of Phone Design on Upper Extremity Discomfort and Muscle Fatigue.” Human Factors , 49(4), 602-618.
Marras, W.S., Ferguson, S.A., Burr, D., Schabo, P, and Maronitis, A. (2007) “Low Back Pain Recurrence in Occupational Environments,” Spine. 32(21), 2387-2397.
2006
Korkmaz, S.V., Hoyle, J., Knapik, G.G., Splittstoesser, R.E., Yang, G., Trippany, D., Lahoti, P., Sommerich, C.M., Lavender, S.A, Marras, W.S. (2006) "Baggage Handling in an Airplane Cargo Hold: An Ergonomic Intervention Study." international journal of industrial ergonomics. 36,301-312.
Marras, W.S., Lavender, S.A., Splittstoesser, R.E., Yang, G., Ferguson, S.A., Schabo, P. (2006) "Prevention of Work Related Musculoskeletal Disorders" Proceedings of the Human Factors and Ergonomics Society 50th Annual Meeting. (2006).
Karwowski, W., Gaweda, A., Marras, W.S., Davis, K., Zurada, J.M. and Rodrick, D. (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 Angels.” international journal of industrial ergonomics, 36(10), 847-859.
Allread, W.G., and Marras W.S. (2006) “Does Personality Affect the Risk of Developing Musculoskeletal Disorders?” Theoretical Issues in Ergonomics Science." 7(2), 149-167.
Gallagher, S., Marras, W.S., Litsky, A.S., Burr, D. (2006) "An Exploratory Study of Loading and Morphometric Factors Associated With Specific in Fatigue Testing of Lumbar Motion Segments." Clinical Biomechanics, 21, 228-234.
Marras, W.S., Parakkat, J., Chany, A.M., Yang, G, Burr, D. and Lavender S.A. (2006) "Spine Loading as a Function of Lift Frequency, Exposure Duration, and Work Experience” Clinical Biomechanics, 21(2), 345-352.
2005
Fujishiro, K., Weaver, J.L., Heany, C.L., Hamrick, C.A., and Marras, W.S. (2005) "The Effect of Ergonomic Interventions in Healthcare Facilities on Musculoskeletal Disorders." American Journal of Industrial Medicine, 48,338-347.
Campbell-Kyureghyan, N., Marras, W.S., Burr, D., and Jorgensen, M.J. (2005) "The Prediction of Lumbar Spine Geometry: Method Development and Validation." Clinical Biomechanics, 20(455-464).
Parakkat, J., Chany, A.M., Yang, G., Burr D., and Marras, W.S. (2005) "The Influence of Lift Frequency, Lift Duration, and Work Experience on Discomfort Reporting," Ergonomics, 50, 396-409.
Chany, A.M., Parakkat, J., Yang, G., Burr, D., and Marras, W.S. (2005) "Changes in Spine Loading Patterns throughout the Workday as a Function of Experience, Lift Frequency and Personality," The Spine Journal, 6 (296-305).
Davis, K.G., and Marras, W.S. (2005) "Load Spatial Pathway and Spine Loading: How Does Lift Origin and Destination Impact Low Back Response?" Ergonomics, 48(8),1031-1046.
Marras, W.S. (2005) “The Future of Research in Understanding and Controlling Work-Related Low Back Disorders” Ergonomics, 48(5), 464-477.
Marras, W.S., Ferguson, S.A., Burr, D., Davis, K.G., and Gupta, P. (2005) "Functional Impairment as a Predictor of Spine Loading." Spine 30(7), 729-737.
Gallagher, S., Marras, W.S., Litsky, A.S., and Burr, D. (2005) "Torso flexion loads and the fatigue failure of human lumbrosacral motion segments." Spine, 30(20), 2265-2273.
Ferguson, S.A., Marras, W.S., Burr, D. (2005) "Differences Among Outcome Measures in Occupational Low Back Pain" Journal of Occupational Rehabilitation, 15(3), 329-341.
2004
Ferguson, S.A., Marras, W.S., Burr, D. Davis, K. and Gupta, P (2004) “Differences
in Motor Recruitment and Resulting Kinematics between Low Back Pain
Patients and Asymptomatic Participants During Lifting Exertions” Clinical Biomechanics, 19(10), 992-999.
Ferguson, S.A. and Marras, W.S. (2004) “Revised Protocol for the Kinematic Assessment of Impairment”. The Spine Journal, 4(2), 163-169.
Marras, W.S., Ferguson, S.A., Burr, D., Davis, K.G., and Gupta, P. (2004) “Spine Loading in Low Back Pain Patients During Asymmetric Lifting Exertions”. The Spine Journal, 4(1), 64-75.
Allread, W.G., Wilkins III, J.R., Waters, T.R. and Marras W.S. (2004) “Physical Demands and Low-Back Injury Risk Among Children and Adolescents Working on Farms”, Journal of Agricultural Safety and Health, 10(4), 257-274.
Ferguson, S.A., Marras, W.S., and Burr, D. (2004) “Workplace Design Guidelines for Asymptomatic vs. Low back Injured Workers.” Applied Ergonomics, 36(1), 85-95.
Ferguson, S.A., Marras,W.S., and Burr, D. (2004) "The influence of individual low back health status on workplace trunk kinematics and risk of low back disorder" Ergonomics, 47(11), 1226-1237.
Marras, W.S. (2004) “State-of-the art research perspectives on musculoskeletal disorder causation and control: the need for an integrated understanding of risk” Journal of Electromyographys and Kinesiology, 14(1), 1-5.
Jorgensen, M.J., Marras, W.S., Smith, F.W., and M.H. Pope (2004) “Sagittal Plane Moment Arms of the Female Lumbar Region Rectus Abdominis in an Upright Neutral Torso Posture," Clinical Biomechanics, 20(3), 242-246.
Zurada, J., Karwowski, W., and Marras, W.S. (2004) "Application of Data Mining Techniques for Classifiction of Industrial Jobs with Respect to Risk of Low Back Disorder Due to Workplace Design" Occupational ergonomics. 4(4), 291-305.
2003
Jorgensen, M.J., Marras, W.S., Gupta, P., and Waters, T.R. (2003) “Effect of Torso Flexion on the Lumbar Torso Extensor Muscle Sagittal Plane Moment Arms”. The Spine Journal, 3(5), 363-369.
Jorgensen, M.J., Marras, W.S., Gupta, P., and Waters, T.R. (2003) “Cross-sectional area of the lumbar back muscles as a function of torso flexion”. Clinical Biomechanics, 18(4), 280-286.
Ferguson, S.A., Gallagher, S., and Marras, W.S. (2003) “Validity and Reliability of Sincerity Test for Dynamic Trunk Motions”, Disability and Rehabilitation. 25(4-5), 236-241.
Lee, W., Karwowski, W., Marras, W.S., and Rodrick, D. (2003) “A Neuro-Fuzzy Model for Estimating Electromyographical Activity of Trunk Muscles Due to Manual Lifting”, Ergonomics, 46(1-3), 285-309.
Marras, W.S. (2003) “The case for cumulative trauma in low back disorders”. The Spine Journal, 3(3), 177-179.
Marras, W.S., Davis, K.G., and Jorgensen, M. (2003) “Gender Influences on Spine Loads during Complex Lifting”, The Spine Journal, 3(2), 93-99.
Davis, K.G., and Marras, W.S. (2003) “Partitioning the Contribution Role of Biomechanical, Psychosocial, and Individual Risk Factors in the Development of Spine Loads”. The Spine Journal, 3(5), 331-338.
2002
Ferguson, S.A., Gaudes-MacLaren, L.L., Marras, W.S., Waters, T.R. and Davis, K.G. (2002) “Spinal Loading When Lifting From Industrial Storage Bins”, Ergonomics, 45(6), 399-414.
Marras, W.S., Davis, K.G., and Jorgensen, M. (2002) “Spine Loading as a Function of Gender”, Spine, 27(22), 2514-2520.
Kovacs, K., Splittstoesser, R., Maronitis, A., and Marras, W.S. (2002) “Grip Force and Muscle Activity Differences Due to Glove Type”, AIHA Journal, 63(3), 269-274.
Davis, K.P., Marras, W.S., Heaney, C.A., Waters, T.R., and Gupta, P. (2002) “The Impact of Mental Processing and Pacing on Spine Loading”, Volvo Award for Low Back Pain Research, Spine, 27(23), 2645-2653. Volvo Award for Low Back Pain Research.
Gallagher, S., Marras, W.S., Davis, K.G. (2002) “Effects of Posture on Dynamic Back Loading during a Cable Lifting Task”, Ergonomics, 45(5), 380-398.
Davis, K.G., Splittstoesser, R.E., and Marras, W.S. (2002) "Kinematic Contribution and Synchronization of the Trunk, Hip, and Knee during Free-Dynamic Lifting," Occupational Ergonomics, 3(2), 99-103 .
Lavender, S.A., Marras, W.S., and Sabol, R.J. (2002) “A Study of Female Mexican Anthropometric Measures Useful for Workstation Design in Light Manufacturing Facilities”, AIHA Journal, 63(3), 300-304.
Radwin, R.G., Marras, W.S., and Lavender, S.A. (2002) “Biomechanical Aspects of Work-Related Musculoskeletal Disorders”, Theoretical Issues in Ergonomic Science, 2(2), 153-217.
2001
Marras, W.S., Jorgensen, M.J., Granata, K.P., and Wiand, B. (2001) "Female and Male Trunk Geometry: Size and Prediction of the Spine Loading Trunk Muscles Derived from MRI," Clinical Biomechanics, 16(1), 38-46.
Parnianpour, M., Ghosh, K., Barin, K., and Marras, W.S. (2001) “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.
Marras, W.S., (2001) "Spine Biomechanics, Government Regulation, and Prevention of Occupational Low Back Pain," The Spine Journal, 1(3), 163-165.
Marras, W.S., Davis, K.G., Ferguson, S.A., Lucas, B.R., and Gupta, P. (2001) "Spine Loading Characteristics of Patients with Low Back Pain Compared with Asymptomatic Individuals," Spine, 26(23), 2566-2574.
Ferguson, S.A., Gupta, P., Marras, W.S., and Heaney, C. (2001) "Predicting Recovery Using Continuous Low Back Pain Outcome Measures," The Spine Journal, 1(1), 57-65.
Kovacs, K.M., Marras, W.S., Litsky, A.S., Gupta, P., and S.A. Ferguson (2001)"Localized Oxygen Use of Healthy and Low Back Pain Individuals During Controlled Trunk Movements," Journal of Spinal Disorders, 14(2), 150-158.
Marras, W.S., Davis, K.G., and A.B. Maronitis (2001) "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.
Marras, W.S. and Davis, K.G. (2001) "A Non-MVC EMG Normalization Technique for the Trunk Musculature: Part 1. Method Development," Journal of Electromyography and Kinesiology, 11(1), 1-9.
Jorgensen, M.J., Marras, W.S., Granata, K.P., and Wiand, B. (2001) "MRI-Derived Moment-Arms of the Female and Male Spine Loading Muscles," Clinical Biomechanics, 16(3), 182-193.
2000
Marras, W.S., Jorgensen, M.J., Granata, K.P., and Wiand, B. (2000) "Female and Male Trunk Geometry, Size and Prediction of the Spine Loading Muscles Derived from MRI," Clinical Biomechanics, 16(1), 38-46.
Marras, W.S., Davis, K.G., Heaney, C.A., Maronitis, A.B., and W.G. Allread (2000) "The Influence of Psychosocial Stress, Gender, and Personality on Mechanical Loading of the Lumbar Spine," Spine, 25(23), 3045-3054.
Nelson, J.E., Treaster, D.E., and Marras, W.S. (2000) "Finger Motion, Wrist Motion, and Tendon Travel as A Function of Keyboard Angles," Clinical Biomechanics, 15(7), 489-498.
Treaster, D.E., and Marras, W.S. (2000) "An Assessment of Alternate Keyboards Using Finger Motion, Wrist Motion,
and Tendon Travel," Clinical Biomechanics, 15(7), 499-503.
Granata, K.P. and Marras, W.S. (2000) "Cost-Benefit of Muscle Cocontraction in Protecting Against Spinal
Instability," Spine, 25(11), 1398-1404.
Allread, W.G., Marras, W.S., and Burr, D.L. (2000) "Measuring Trunk Motions in Industry: Variability Due to Task Factors, Individual Differences, and the Amount of Data Collected," Ergonomics, 43(6), 691-701.
Marras, W.S. (2000) "Occupational Low Back Disorder Causation
and Control," Ergonomics, 43(7), 880-902.
Davis, K.G. and Marras, W.S. (2000) "The Effects of Motion on Trunk
Biomechanics," Clinical Biomechanics, 15(10), 703-717.
Davis, K.G. and Marras (2000) "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.
Davis, K.G., Jorgensen, M.J., and Marras, W.S. (2000) "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.
Marras, W.S., Allread, W.G., Burr, D.L., and Fathallah, F.A. (2000) "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.
Marras, W.S., Jorgensen, M.J., and Davis, K.G. (2000) "The 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.
Jorgensen, M.J. and Marras, W.S. (2000) "The Effect of Lumbar Back Support Tension on Trunk Muscle Activity," Clinical Biomechanics, 15(4), 292-294.
Marras, W.S., Lewis, K.E., Ferguson, S.A., and Parnianpour, M. (2000) "Impairment Magnification During Dynamic Trunk Motions," Spine, 25(5),587-595.
1999
Marras, W.S., Davis, K.G., Kirking, B.C. and Bertsche P.K. (1999) "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.
Marras, W.S., Ferguson, S.A., Gupta, P., Bose, S., Parnianpour, M., Kim, J., and Crowell, R.R. (1999) "The Quantification of Low Back Disorder Using Motion Measures: Methodology and Validation," Spine, 24(20), 2091-2100.
Marras, W.S., Davis, K.G., Kirking, B.C. and Granata, K.P. (1999) "Biomechanical Assessment of Lifting Dynamics, Muscle Activity and Spinal Loads While Using Three Different Styles of Lifting Belt," Clinical Biomechanics, 12(2), 107-115.
Marras, W.S., Lewis, K.E., Ferguson, S.A., and Parnianpour, M. (1999) "Effort Sincerity and Dynamic..."
Marras, W.S., Fine, L.J., Ferguson, S.A. and Waters, T.R.
(1999) "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.
Jorgensen, M.J., Davis, K.G., Kirking, B.C., Lewis, K.E., and Marras,
W.S. (1999) "Significance of Biomechanical and Physiological Variables
During the Determination of Maximum Acceptable Weight of Lift," Ergonomics,
42(9), 1216-1232.
Granata, K.P., Marras, W.S., and Davis, K.G. (1999) "Variation in
Spinal Load and Trunk Dynamics During Repeated Lifting Exertions," Clinical Biomechanics, 14(6), 367-375.
Marras, W.S., Ferguson, S.A., Gupta, P., Bose, S., Parnianpour, M., Kim, J., and Crowell, R.R. (1999) "The Quantification of Low Back Disorder Using Motion Measures: Methodology and Validation," Spine, 24(20), 2091-2100.
Granata, K.P., and Marras, W.S. (1999) "Relation Between Spinal Load Factors and the High Risk Probability of Occupational Low Back Disorder," Ergonomics, 42(9), 1187-1199.
Fahallah, F.A., Marras, W.S., and Parianpour, M. (1999) "Regression Models for Predicting Peak and Continuous Three-Dimensional Spinal Loads During Symmetric and Asymmetric Lifting Tasks," Human Factors, 41(3), 373-388
Marras, W.S., Granata, K.P. and Davis, K.G. (1999) "Variability in Spine Loading Model Performance," Clinical Biomechanics, 14(8), 505-514.
Marras, W.S., Granata, K.P., Davis, K.G., Allread, W.G., and Jorgensen, M.J. (1999) "The Effects of Box Features on Spine Loading During Order Selecting," Ergonomics, 42(7), 980-996.
1998
Bridger, R.S., Sparto, P., and Marras, W.S. (1998) "Spade
Design, Lumbar Motion Risk of Low-Back Injury And Digging Posture," Occupational
Ergonomics, 1(3),157-172.
Davis, K.G., Marras, W.S., and Waters, T.R. (1998) "Reduction of
Spinal Loads Through the Use of Handles," Ergonomics, 41(8), 1155-1168.
Marras, W.S., Davis, K.G., and Granata, K.P. (1998) "Trunk Muscle
Activities During Asymmetric Twisting Motions," Journal of Electromyography
and Kinesiology, 8(4), 247-256.
Sparto, P.J., Parnianpour, M., Marras, W.S., Granata, K.P., Reinsel, T.E.,
Simon, S.R. (1998) "The Effect Of EMG-Force Relationships And Method
Of Gain Estimation On The Predictions Of An EMG-Driven Model Of Spinal
Loading," Spine, 23(4), 423-429.
Sommerich, C.M., Marras, W.S., and Parnianpour,
M. (1998) "A Method for Developing Biomechanical Profiles of Hand-Intensive
Tasks," Clinical Biomechanics, 13, 261-271.
Fathallah, F.A., Marras, W.S., and Parnianpour, M. (1998) "An Assessment
of Complex Spinal Loads During Dynamic Lifting Tasks," Spine, 23(6),
706-716.
Fathallah, F.A., Marras, W.S., and Parnianpour, M. (1998) "The Role
of Complex, Simultaneous Trunk Motions In The Risk Of Occupationally-Related
Low Back Disorders," Spine, 23(9), 1035-1042.
Marras, W.S., and Davis, K.G. (1998) "Spine Loading During Asymmetric Lifting Using One vs. Two Hands," Ergonomics, 41(6), 817-834.
Davis, K.G., Marras, W.S., and Waters, T.R. (1998) "Evaluation Of Spinal Loading During Lowering And Lifting," Clinical Biomechanics, 13(3) 141-152.
1997
Zurada, J., Karwowski, W., and Marras, W.S. (1997) "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.
Marras, W.S., and Granata, K.P. (1997) "Spine Loading During Trunk Lateral Bending Motions," Journal of Biomechanics, 30(7), 697-703.
Marras, W.S., and Granata, K.P. (1997) "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.
Fathallah, F.A., Marras, W.S., Parnianpour, M., and Granata, K.P. (1997) "A Method For Measuring External Spinal Loads During Unconstrained Free-Dynamic Lifting," Journal of Biomechanics, 30(9), 975-978.
Ferguson, S.A., and Marras, W.S. (1997) "A Literature Review of Low Back Disorder Surveillance Measures and Risk Factors," Clinical Biomechanics, 12(4), 211-226.
Marras, W.S., Granata, K.P., Davis, K.G., Allread, W.G.,
and Jorgensen, M.J. (1997) "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.
Davis, K., Kirking, B., Gaudes, L., Jany, W., and Marras, W.S. (1997) "Influence of Lift Moment in Determining MAWL," Human Factors, 39(2), 312-322.
Sparto, P.J., Parnianpour, M., Marras, W.S., Granata, K.P., Reinsel, T.E.,
and Simon, S.R. (1997) "Neuromuscular Trunk Performance And Spinal
Loading During A Fatiguing Isometric Trunk Extension With Varying Torque
Requirements," Journal of Spinal Disorders, 10(2), 145-156.
Marras, W.S. and Granata, K.P. (1997) "Changes in Trunk Dynamics and Spine Loading During Repeated Trunk Exertions," Spine, 22(21), 2564-2570.
Lee, C.C., Nelson, E, Davis, K., and Marras, W.S. (1997) "An Ergonomic Comparison of Industrial Spray Paint Guns," International
Journal of Industrial Ergonomics, 19, 425-435.
Fathallah, F.A., Marras, W.S., and Parnianpour M. (1997) "The Effect
of Complex Dynamic Lifting and Lowering Characteristics on Trunk Muscles
Recruitment," Journal of Occupational Rehabilitation, 7(3), 121-138.
Ferguson, S.A., Marras, W.S., and Crowell, R.R. (1997) "Dynamic Low Back Functional Motion Capacity Evaluation," Journal of Occupational Rehabilitation, 6(4), 203-214.
Marras, W. S. Granata, K. P. (1997) "Spine loading during trunk lateral bending motions" Journal of Biomechanics, 30(7), 697-703.
1996
Kim, J.Y., Parnianpour, M., and Marras,
W.S. (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.
Allread, W.G., Marras, W.S., and Parnianpour, M. (1996) "Trunk Kinematics
of One-Handed Lifting and Effects of Asymmetry and Load Weight," Ergonomics 39(2), 322-334.
Granata, K.P., Marras, W.S., and Fathallah, F.A. (1996) "A Method
For Measuring External Loads During Dynamic Lifting Extensions,"
Journal of Biomechanics, 29(9), 1219-1222.
Sommerich, C.M., Marras, W.S., and Parnianpour, M. (1996) "Observations on the Relationship Between Key Strike Force and Typing Speed," American Industrial Hygiene Association Journal, 57, 1109-1114.
Sommerich, C.M., Marras, W.S., and Parnianpour, M. (1996) "A Quantitative Description of Typing Biomechanics," Journal of Occupational Rehabilitation, 6(1), 33-55.
Fathallah, F.A., Marras, W.S., and Wright, L.P. (1996) " Intra-abdominal Pressure During Trunk Extension Motions," Clinical Biomechanics, 11(5), 267-274.
1995
Marras, W.S., Schoenmarklin, R.W., Greenspan,
G.J., and K.R. Lehman (1995), "Quantification of Wrist Motions During
Scanning," Human Factor, 37(2), 412-423.
Granata, K.P., and Marras, W.S. (1995) "The Influence of Trunk Muscle
Coactivity Upon Dynamic Spinal Loads," Spine, 20(8), 913-919.
Granata, K.P., and Marras, W.S. (1995) "An EMG-Assisted Model of Trunk Loading During Free-Dynamic Lifting," Journal of Biomechanics, 28(11), 1309-1317.
Marras, W.S., and Granata, K.P. (1995) "A Biomechanical Assessment and Model of Axial Twisting in the Thoraco-Lumbar Spine," Spine, 20(13), 1440-1451.
Marras, W.S., Lavender, S.A, Leurgans, S., Fathallah, F.A.,
Allread, W.G., Ferguson, S.A., and Rajulu, S. (1995) "Biomechanical Risk
Factors for Occupationally Related Low Back Disorder Risk," Ergonomics
, 38(2), 377-410.
Marras. W.S., Parnianpour, M., Ferguson, S.A., Kim, J.Y., Crowell, R.R, Bose, S and Simon, S.R. (1995) "The Classification of Anatomic and Symptom Based Low Back Disorders Using Motion Measure Models," Spine 20(23), 2531-2546.
1994
Marras, W.S., Parnianpour, M. Kim, J.Y., Ferguson, S.A., Crowell, R.R, and Simon, S.R. (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.
Kim,J.Y., Stuart-Buttle, C., and Marras, W.S. (1994) "The Effects of Mats on Back and Leg Fatigue," Applied Ergonomics, 25(1), 29-34.
Schoenmarklin, R.W., Marras, W.S., and Leurgans S.E. (1994) "Industrial Wrist Motions and Incidence of Hand/Wrist Cumulative Trauma Disorders," Ergonomics, 37(9), 1449-1459.
Gallagher, S., Hamrick, C.A., Love, A.C., and Marras, W.S. (1994) "Dynamic Biomechanical Modeling of Symmetric and Asymmetric Lifting Tasks in Restricted Postures," Ergonomics, 37(8), 1289-1310.
Lavender, S.A, and Marras, W.S. (1994) "The Use of Turnover Rate as a Passive Surveillance Indicator For Potential Low Back Disorders," Ergonomics, 37(6), 971-978
1993
Marras, W.S., and Kim, J.Y. (1993) "Anthropometry of Industrial Populations," Ergonomics, 36(4), 371-378.
Sommerich, C.M., McGlothlin, J.D., and W.S. Marras (1993) "Occupational Risk Factors Associated with Soft Tissue Disorders of the Shoulder: A Review of Recent Investigations in the Literature," Ergonomics, 36(6), 697-717.
Marras, W.S. and Schoenmarklin, R.W. (1993) "Wrist
Motion in Industry,"
Ergonomics, 36(4), 341-351.
Schoenmarklin, R.W. and Marras, W.S.
(1993) "Dynamic Capabilities of the Wrist Joint in Industrial Workers," international journal of industrial ergonomics, 11(3), 207-224.
Lavender, S.A., Marras, W.S., and Miller, R.A. (1993) "The Development of Response Strategies in Preparation for Sudden Loading to the Torso," Spine, 18(14), 2097-2105.
Marras, W.S., and Mirka, G.A. (1993) "Electromyographic Studies of
the Lumbar Trunk Musculature During the Generation of Low Level Trunk
Acceleration," Journal of Orthopaedic Research, 11(6), 811-817.
Marras, W.S., Parnianpour, M., Ferguson, S.A., Kim, J.Y., Crowell, R.R., and Simon, S.R. (1993) "Quantification and Classification of Low Back Disorders Based on Trunk Motion," European Journal of Physical Medicine Vienna Physical Medicine Award 1993, 3(6), 218-235.
Mirka G.A., and Marras, W.S. (1993) "A Stochastic Model of Trunk Muscle Coactivation During Trunk Bending," Spine, Volvo Award for Low Back Pain Research, 18(11), 1396-1409.
Granata, G.P., and Marras, W.S. (1993) "An EMG-Assisted
Model of Loads on the Lumbar Spine During Asymmetric Trunk Extensions,"
Journal of Biomechanics, 26(12), 1429-1438.
Marras, W. S., McGlothlin, J. D., McIntyre, D. R., Nordin, M., and Kroemer,
K.H.E. (1993) "Dynamic Measures of Low Back Performance," American Industrial
Hygiene Association Ergonomics Guide, ISBN 0-932627-52-8, Stock No. 174-ER-93.
Marras, W.S., Lavender, S.A., Leurgans, S., Rajulu, S.L., Allread, W.G., Fathallah, F.A., and Ferguson, S.A. (1993) "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 Injury," Spine, 18(5), 617-628.
1992
Marras, W.S., Fathallah, F., Miller, R.J., Davis, S.W.,
and Mirka, G.A. (1992) "Accuracy of a Three Dimensional Lumbar Motion
Monitor for Recording Dynamic Trunk Motion Characteristic," International
Journal of Industrial Ergonomics, 9(1), 75-87.
Sommerich, C.M., and Marras, W.S. (1992) "Temporal Patterns of Trunk
Muscle Activity Throughout a Dynamic, Asymmetric Lifting Motion," Human Factors, 34(2), 215-230.
Ferguson, S.A., Marras, W.S., and Waters, T.R. (1992), "Quantification
of Back Motion During Asymmetric Lifting," Ergonomics, 35(7/8), 845-859.
Marras, W.S., and Mirka, G.A. (1992) "A Comprehensive Evaluation
of Asymmetric Trunk Motions," Spine, 17(3), 318-326.
Ferguson, S.A., and Marras, W.S. (1992) "Quantification of Velocity
Coupling During Asymmetric Lifting," International Journal of Industrial
Ergonomics, 10, 207-215.
1991
Marras, W.S. (1991) "A Model for the Objective Assessment of Automobile Restraint Systems," International Journal of Industrial Ergonomics, 8(1), 59-65.
Marras, W.S., and Lavender, S.A. (1991) "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.
Marras, W.S., and Sommerich, C.M. (1991) "A Three Dimensional
Motion Model of Loads on the Lumbar Spine, Part I: Model Structure," Human
Factors, 33(2), 123-137.
Marras, W.S., and Sommerich, C.M. (1991) "A Three Dimensional Motion Model of Loads on the Lumbar Spine, Part II: Model Validation," Human Factors, 33(2), 139-149.
1990
Mirka, G.A., and Marras, W.S. (1990)"Lumbar Motion Response to a
Constant Load Velocity Lift," Human Factors, 32(4), 493-501.
Ahern, D.K., Follick, M.J., Lucas, P., Parziale, J., Marras, W.S., Wilkin, D., and Wolf, S. (1990) "Interdisciplinary Perspectives on Mechanisms and Management of Low Back Pain," Rhode Island Medical Journal, January, 21-31.
Marras, W.S., Ferguson, S.A., and Simon, S.R. (1990) "Three Dimensional Dynamic Motor Performance of the Normal Trunk," International Journal of Industrial Ergonomics, 6(3), 211-224.
Lavender, S. A., and Marras, W.S. (1990) "An Electromyographic
Analysis of an Ergonomic Intervention with the Jack Leg Drill," Applied
Ergonomics, 21(2), 90-100.
Marras, W.S., and Mirka, G.A. (1990) "Muscle Activities During Asymmetric Trunk Angular Accelerations," Journal of Orthopaedic Research, 8(6), 824-832.
Marras, W.S., (1990) "Industrial Electromyography," International Journal of Industrial Ergonomics, 6(1), 89-93.
Kroemer, K.H.E., Marras, W.S., McGlothlin, J.D., McIntyre, D.R., and M. Nordin (1990) "On the Measurement of Human Strength," International Journal of Industrial Ergonomics, 6, 199-210.
1989
Lavender, S.A., Mirka, G.A., Schoenmarklin, R.W., Sommerich, C.M., Sudhaker,
L.R., and Marras, W.S. (1989) "The Effects of Preview and Task Symmetry on Trunk Muscle Response to Sudden Loading," Human Factors, 31(1), 101-115.
Marras, W.S., and Mirka, G.A. (1989) "Trunk Strength During Asymmetric
Trunk Motion," Human Factors, 31(6), 667-677.
Gray,B.A., and Marras, W.S. (1989) "An Experimental Analysis of Railroad Spike Maul Methods," Human Factors, 31(3), 335-344.
Schoenmarklin, R.W., and Marras, W.S. (1989) "Effects of Handle Angle and Work Orientation on Hammering: I. Wrist Motion and Hammering Performance," Human Factors, 31(4), 397-411.
Schoenmarklin, R.W., and Marras, W.S. (1989) "Effects of Handle Angle and Work Orientation on Hammering: II. Muscle Fatigue and Subjective Ratings of Body Discomfort," Human Factors, 31(4), 413-420.
Reilly, C.H., and Marras, W.S. (1989) "SIMULIFT: A Simulation Model of Human Trunk Motion During Lifting," Spine, 14(1), 5-11.
1988
Marras, W.S., and Reilly, C.H. (1988) "Networks of Internal Trunk Loading Activities Under Controlled Trunk Motion Conditions," Spine, 13(6), 661-667.
Marras, W.S. (1988) "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.
Marras, W.S., Bobick, T.G., Lavender, S.A., Rockwell, T.H.,
and Lundquist, R.L. (1988) "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.
Gallagher, S., Marras, W.S., and Bobick, T.G. (1988) "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.
Marras, W.S., Lavender, S.A., Bobick, T.G., Rockwell, T.H., and Lundquist, R.L. (1988) "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.
1987
Marras, W.S., Rangarajulu, S.L., and Wongsam, P.E. (1987) "Trunk
Force Development During Static and Dynamic Lifts," Human Factors,
29(1), 19-29.
Treaster, D., and W.S. Marras (1987) "Measurement of Seat
and Back Pressure Distributions," Human Factors, 29(5), 563-575.
Marras, W.S. (1987) "Trunk Motion During Lifting: Temporal Relations
Among Loading Factors," International Journal of Industrial Ergonomics,
1(3), 159-167.
Marras, W.S., Rangarajulu, S.L., and Lavender, S.A. (1987) "Trunk
Loading and Expectation," Ergonomics, 30(3), 551-562.
Kim, J.Y., and Marras, W.S. (1987) "Quantitative Trunk Muscle Electromyography
During Lifting at Different Speeds," International Journal of Industrial
Ergonomics, 1(3), 219-229.
1986
Marras, W.S., Wongsam, P.E., and Rangarajulu, S.L. (1986) "Trunk
Motion During Lifting: The Relative Cost," International Journal
of Industrial Ergonomics, 1(2), 103-113.
Marras, W.S., and Rockwell, T.H. (1986) "An Experimental Evaluation of Method and Tool Effects in Spike Maul Use," Human Factors, 28(3), 267-281.
Marras, W.S., and Wongsam, P.E. (1986) "Flexibility and Velocity of the Normal and Impaired Lumbar Spine," Archives of Physical Medicine and Rehabilitation , 67, 213-217.
Rockwell, T.H., and Marras, W.S. (1986) "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.
1985
Marras, W.S., Joynt, R.L., and King, A.I. (1985) "The Force Velocity
Relation and Intra-Abdominal Pressure During Lifting Activities," Ergonomics, 28(3), 603-613.
1984
Marras, W.S., King, A.I., and Joynt, R.L. (1984) "Measurements of
Loads on the Lumbar Spine Under Isometric and Isokinetic Conditions," Spine, 9(2), 176-188
1981
Kroemer, K.H.E., and W.S. Marras (1981) "Evaluation of Maximal
and Sub-Maximal Static Muscle Exertions," Human Factors, 23(6), 643-654.
1980
Marras, W.S., and Kroemer, K.H.E. (1980) "A Method to Evaluate Human Factors/Ergonomics Design Variables of Distress Signals," Human Factors, 22(4), 389-400.
Kroemer, K.H.E., and Marras, W.S. (1980) "Ergonomics of Visual Emergency Signals," Journal of Applied Ergonomics, 11(3), 137-144.
Kroemer, K.H.E. and W.S. Marras (1980) "Towards an Objective
Assessment of the "Maximal Voluntary Contraction" Component in Routine Muscle
Strength Measurements," European Journal of Applied Physiology, 45, 1-9.
