The Biomechanics Laboratory continues to develop and test techniques designed to explore the complex relationship between impairments of the neuromusculoskeletal system, functional limitations, and disability. One study of 18 normal subjects investigated the effect of dramatically different walking speeds on the mechanics of walking. Through the use of mechanical power analysis, it was demonstrated that two modes of walking may exist rather than a continuum of a single walking strategy. Another study evaluated a new technique for determining the role each major muscle group of the lower extremity plays in providing support to and propulsion of the body during walking. The results indicate forward progression was produced primarily by the ankle plantar flexors with a significant assist from the knee extensors. The results of these studies suggest that a complete and numerically consistent mechanical characterization of human movement is feasible. The application of these analytic techniques to the evaluation of human motion will have implications for rehabilitation and surgical treatment in patient populations.

Agency
National Institute of Health (NIH)
Institute
Clinical Center (CLC)
Type
Intramural Research (Z01)
Project #
1Z01CL060017-08
Application #
6103726
Study Section
Special Emphasis Panel (RM)
Project Start
Project End
Budget Start
Budget End
Support Year
8
Fiscal Year
1998
Total Cost
Indirect Cost
Name
Clinical Center
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Goldberg, Saryn R; Stanhope, Steven J (2013) Sensitivity of joint moments to changes in walking speed and body-weight-support are interdependent and vary across joints. J Biomech 46:1176-83
Goldberg, Saryn R; Kepple, Thomas M (2009) Muscle-induced accelerations at maximum activation to assess individual muscle capacity during movement. J Biomech 42:952-5
Mazza, Claudia; Stanhope, Steven J; Taviani, Antonio et al. (2006) Biomechanic modeling of sit-to-stand to upright posture for mobility assessment of persons with chronic stroke. Arch Phys Med Rehabil 87:635-41
Siegel, Karen Lohmann; Kepple, Thomas M; Stanhope, Steven J (2006) Using induced accelerations to understand knee stability during gait of individuals with muscle weakness. Gait Posture 23:435-40
Manal, Kurt; Chang, Chih-Chung; Hamill, Joseph et al. (2005) A three-dimensional data visualization technique for reporting movement pattern deviations. J Biomech 38:2151-6
Slobounov, S; Hallett, M; Stanhope, S et al. (2005) Role of cerebral cortex in human postural control: an EEG study. Clin Neurophysiol 116:315-23
Manal, Kurt; Stanhope, Steven J (2004) A novel method for displaying gait and clinical movement analysis data. Gait Posture 20:222-6
Siegel, Karen Lohmann; Kepple, Thomas M; Stanhope, Steven J (2004) Joint moment control of mechanical energy flow during normal gait. Gait Posture 19:69-75
Mazza, Claudia; Benvenuti, Francesco; Bimbi, Carlo et al. (2004) Association between subject functional status, seat height, and movement strategy in sit-to-stand performance. J Am Geriatr Soc 52:1750-4
Manal, K; McClay Davis, I; Galinat, B et al. (2003) The accuracy of estimating proximal tibial translation during natural cadence walking: bone vs. skin mounted targets. Clin Biomech (Bristol, Avon) 18:126-31

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