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Chris Hass, Ph.D.
Assistant Professor

Curriculum Vitae

EDUCATIONAL BACKGROUND
B.S. Furman University (Biology and Exercise Science)
M.S. University of Florida (Exercise Physiology)
Ph.D. University of Florida (Biomechanics)
Post doc Emory / Georgia Tech (Neurology)

RESEARCH INTERESTS
My research focuses on interactions between musculoskeletal biomechanics and sensorimotor control of lower extremity function with particular emphasis on the coordination of locomotion and balance. In addition, I apply biomechanical and neurophysiologic principles to understand aging and disease processes so that exercise interventions can be optimized to improve physical function. I use a combination of techniques from engineering mechanics and neurophysiology to generate hypotheses and evaluate experimental results in a quantitative rather than descriptive way. As a result, my studies cross multiple disciplines, including biomechanics and exercise physiology, but have the common goal of identifying general principles of neuromechanical control.

Projects are underway to examine: 1) the efficacy of intervention programs (exercise, stereotachtic, and pharmacological) for improving quality of life, neuromechanical control, and disease progression in Parkinson’s disease (PD) and 2) dynamic stability during locomotor transitions in the elderly and PD.

SELECTED PUBLICATIONS

Lay A.N., C.J. Hass, R. J. Gregor. The Effects of Sloped Surfaces on Locomotion: Backward Walking as a Perturbations. Journal of Biomechanics. In press

Lay A.N., C.J. Hass, R. Nichols, R.J. Gregor. The Effects of Sloped Surfaces on Locomotion: An Electromyographic Analysis. .Journal of Biomechanics. 40(6):1276-85, 2007

Hass, C.J., M.A. Collins, J.L. Juncos. Resistance training with creatine monohydrate supplementation improves upper body strength in patients with Parkinson’s disease: a randomized trial. Neurorehabilitation and Neural Repair. 21(2):107-15, 2007

Lay A.N., C.J. Hass, R.J. Gregor. The Effects of Sloped Surfaces on Locomotion: A Kinematic and Kinetic Analysis. Journal of Biomechanics. 39(9):1621-8, 2006

M.D. Tillman, Hass, C.J., J.W. Chow, D. Brunt. Lower extremity coupling parameters during locomotion and landings. Journal of Applied Biomechanics 21(4), 359-370, 2005

Hass, C.J, D.E. Waddell, R.P. Fleming, J.L. Juncos, R.J. Gregor. Dynamic Stability and Gait initiation in Parkinson’s disease. Archives of Physical Medicine and Rehabilitation 86, 2172-2176, 2005.

Lay A.N., C.J. Hass, D.W. Smith, R.J. Gregor. Characterization of a System for Studying Human Gait During Slope Walking. Journal of Applied Biomechanics . 21(2), pp 153-166, 2005

Hass, C.J., E.A. Schick, J.W. Chow, M.D. Tillman, D. Brunt, J.H. Cauraugh. Knee Biomechanics during Landings: Comparison of Pre- and Postpubescent Females. Medicine and Science in Sport and Exercise. 37(1):100-7, 2005

Hass, C.J.,R.J. Gregor, D.E. Waddell, A. Oliver, D.W. Smith, R.P. Fleming, 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: 1593-1598, 2004.

Tillman, M.D., C.J. Hass, D Brunt, & G.R. Bennett. Jumping and landing strategies in women’s volleyball. Journal of Sport Science and Medicine. 3: 30-36, 2004.

Tillman, M.D., R.M. Criss, D. Brunt, C.J. Hass. Landing constraints influence ground reaction forces and lower extremity EMG in female volleyball players. Journal of Applied Biomechanics. 20 (1): 38-50, 2004.

Hass, C.J., E. A. Schick, J.W. Chow, M. D. Tillman, D. Brunt, J. H. Cauraugh. Lower Extremity Biomechanics: A Comparison between Prepubescent and Postpubescent Female Athletes During Stride Jumps. Journal of Applied Biomechanics. 19(2):139-152, 2003.

Tillman, M.D., A. Chiumento, M. Trimble, J.A. Bauer, J.H. Cauraugh, T.W. Kaminski, C.J. Hass. Can functional foot orthotics alter tibiofemoral rotation during landing activities in females? Physical Therapy in Sport, 4: 34–39, 2003.

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