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Robert J. Gregor, Ph.D.

Professor

   Director, Center for Human Movement Studies
   School of Applied Physiology
   Email: robert.gregor@ap.gatech.edu
   Phone: (404) 894-1028
   Office: CRB 353

Education

Ph.D., Biomechanics and Physiology, The Pennsylvania State University, University Park, PA, 1976
M.A., Physical Education and Exercise Physiology, Ball State University, Muncie, IN, 1970
B.S.E., Physical Education and Health, Cortland State University, Cortland, NY

Research Interests

Dr. Gregor's primary research interests focus on the biomechanics of human movement as it relates to the neural control of movement, maximizing performance and minimizing injury.

Current Research

In his current research, Dr. Gregor employs both animal and human models to investigate questions related to Neuromuscular biomechanics and the control of movement. His primary focus is on the use of skeletal muscle as a resource to the nervous system in controlling movement during a variety of tasks. Current projects involve biomechanical analysis of the upper extremity in the poultry processing industry during selected cutting tasks on the processing line. The focus of this research lies in the investigation of environmental demands on the upper extremity as they might relate to Carpal Tunnel Syndrome and cumulative trauma disorders.

A second major project involves Tai Chi intervention and the prevention of falls in the elderly. This is a project in collaboration with the Department of Rehabilitation Medicine at Emory University School of Medicine and involves a biomechanical analysis of gait as it relates to balance and stability in elderly volunteers transitioning to frailty. A third major project focus is on implantable transducers capable of measuring force in muscle-tendon units in the adult cat. Dr. Gregor has been surgically implanting these transducers for almost 20 years in the study of strategies employed by the nervous system to control movement.

Publications

Lay, Andrea N., Chris J. Hass, D. Webb Smith, and Robert J. Gregor Characterization of a System for Studying Human Gait During Slope Walking Journal of Applied Biomechanics (in press).

Hass, C.J., R.J. Gregor, D.E. Waddell, A. Oliver, D.W. Smith, R.P. Fleming and S.L. Wolf The Influence of Tai Chi Training on the Center of Pressure Trajectory During Gait Initiation in Older Adults. Archives of Physical Medicine and Rehabilitation. 85:1593-98, 2004.

Kressig, R.W., R.J. Gregor, A. Oliver, D. Waddell, W. Smith, M. O’Grady, A. Curns, M. Kutner and S.L. Wolf Temporal and Spatial Features of Gait in Older Adults Transitioning to Frailty Gait and Posture. 20:30-35, 2004.

Waddell, D, C. Wyvill and R.J. Gregor Upper Extremity Kinetics in Poultry Processing: An Ergonomic Assessment System (EWAS) Journal of Applied Biomechanics 19:169-177, 2003.

Wolf, S.L., R. Sattin, M. Kutner, M. O’Grady, A. Greenspan and R.J. Gregor Intense Tai Chi Exercise Training and Fall Occurrences in Older, Transitionally Frail Adults: A Randomized Controlled Trial JAGS (December, 2003)

Grabiner, M. and R.J. Gregor Revisiting the Framework for Viewing Carpal Tunnel Syndrome as a Work-related Pathology. Exercise and Sport Science Review Vol. 31, (3):123-126, 2003.

Perell, K.L., S. Gregor, G. Kim, S. Rushatakankovit, A.M.E. Scremin, S. Levin and R.J. Gregor Comparison of cycling kinetics during recumbent bicycling in subjects with and without diabetes. J. Rehab. Res. and Deve. Vol. 39, (1):13-20, 2002.

Gregor, S.M., Perell, K.L., Rushakanakovit, S., Miyamoto, E., Muffoletto, R. and Gregor, R.J. Lower extremity general muscle moment patterns in healthy individuals during recumbent cycling. J. Clinical Biomechanics. Vol. 17, (2): 123-129, 2002.

Gregor, R.J., J.L. Smith, D.W. Smith, A. Oliver and B.I. Prilutsky Hindlimb Kinetics and Neural Control During Slope Walking in the Cat: Unexpected Findings Journal of Applied Biomechanics Vol.17, No. 4: 277-286, 2001.

Perell, KL, R.J. Gregor, and AME Scremin Muscle strength and gait speed changes following bicycle exercise in subjects with unilateral CVA. Journal of Aging and Physical Activity Vol. 9, No. 4: 286-297, 2001.

Prilutsky, B.I. and R.J. Gregor Swing- and support-related muscle actions differentially trigger human walk-run and run-walk transitions J. Exp. Biology 204:2277-2287, 2001.

Perell, K.L., R.J. Gregor, and A.M.E. Scremin. Bicycle pedal kinetics following force symmetry feedback training in subjects with unilateral Cerebrovascular accident. Journal of Applied Biomechanics 16:124-141, 2000.

Prilutsky, B.I., R.J. Gregor, and A.M. Albrecht. Analysis of muscle coordination strategies in cycling. IEEE Transactions on Biomedical Engineering 8:362-370, 2000.

Franco, J., K.L. Perell, R.J. Gregor and A.M. Erika Scremin Knee kinetics during functional electrical stimulation induced cycling in spinal cord injured subjects: A preliminary study. Journal or Rehabilitation Research and Development Vol. 36, No. 3, pp 207-216, July, 1999.

Wolf, S.L. and R.J. Gregor Exploring unique applications of kinetic analyses to movement In older adults. Journal of Applied Biomechanics 15:75-83, 1999.

Prilutsky, B.I., T. Isaka, A.M. Albrecht, and R.J. Gregor Is coordination of two-joint leg muscles during load lifting consistent with the strategy of minimum fatigue? Journal of Biomechanics 31:1025-1034, 1998.

Prilutsky, B.I., R.J. Gregor, and M.M. Ryan Coordination of two-joint rectus femoris and hamstrings during the swing phase of human walking and running. Experimental Brain Research 120:479-486, 1998.

Perell, K., R.J. Gregor, and A.M.E. Scremin Lower limb cycling mechanics in subjects with unilateral CVAs. Journal of Applied Biomechanics 14:150-179, 1998.

Prilutsky, B.I. and R.J. Gregor Strategy of coordination of two- and one-joint leg muscles during controlling an external force Motor Control 1:92-116, 1997.