Document Type
Article
Language
eng
Format of Original
13 p.
Publication Date
2000
Publisher
Human Kinetics
Source Publication
Journal of Applied Biomechanics
Source ISSN
1065-8483
Abstract
The importance of momentum in compensating for elderly individua ls ' strength deficits to achieve activities of daily living. such as rising from a chair ha.!o been demonstrated in earlier studies. Here we present a case control study of three healthy "non-fallers" and two "frequent fallers," All 5 elders were community-living and were tested in the gai l laboratory. A four-camera Selspot system was used to obtain whole-body momentum from an 11-segment kinematic model. Ground reaction forces and kinematics were used 10 calculate lower extremity join! moments. With the exception of the whole-body's angular momentum about the vertical axis, linear and angular momenta during gait were minimum during mid-single limb support and maximum near heel contact. Whole-body momentum values for individuals with a history of falls were similar to those measured in non-fallers. However. subjects with a history of falls had between 17 and 37% smaller maximum ankle and knee torque values than the subjects without a history of falls during ambulation. A comprehensive description of whole-body linear and angular momenta during steady-stale gait in older individuals is presented. While whole-body momentum characteristics and magnitude were similar between fallers and non-fallers. the consequences of the lesser torque values in the fallers ' knees and ankles 10 generate and control this momentum warrant further investigation.
Recommended Citation
Simoneau, Guy G. and Krebs, David E., "Whole Body Momentum During Gait: A Preliminary Study of Non-Fallers and Frequent Fallers" (2000). Physical Therapy Faculty Research and Publications. 28.
https://epublications.marquette.edu/phys_therapy_fac/28
Comments
Published version. Journal of Applied Biomechanics, Vol. 16, No. 1 (2000): 1-13. Publisher's Link. © 2000 Human Kinetics Publishers, Inc. Used with permission.