Document Detail

Biomechanical analysis of the sit-to-stand motion in elderly persons.
MedLine Citation:
PMID:  1622314     Owner:  NLM     Status:  MEDLINE    
The sit-to-stand motion of ten healthy subjects, 65 to 76 years old, was evaluated using kinematic, force plate, and electromyographic data to characterize the sit-to-stand motion. Kinematic data collected by video, muscle activity monitored by surface electromyography, and ground reaction forces analyzed by a piezoelectric force plate were used for analysis. Using these synchronized data, three phases of the sit-to-stand motion were identified--phase 1, weight shift; phase 2, transition; and phase 3, lift. A consistent pattern of trunk and lower extremity motion was observed, and two distinct upper extremity movement strategies were identified. The onset of muscle activity occurred in the following order: erector spinae, rectus femoris, and vastus medialis (phase 1); biceps femoris, gluteus maximus, and rectus abdominus (phase 2). This characterization of the sit-to-stand motion for a small population of healthy elderly subjects serves as a basis for identifying problems in elderly patients who demonstrate difficulty getting up from a chair.
P J Millington; B M Myklebust; G M Shambes
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Archives of physical medicine and rehabilitation     Volume:  73     ISSN:  0003-9993     ISO Abbreviation:  Arch Phys Med Rehabil     Publication Date:  1992 Jul 
Date Detail:
Created Date:  1992-08-04     Completed Date:  1992-08-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985158R     Medline TA:  Arch Phys Med Rehabil     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  609-17     Citation Subset:  AIM; IM    
Physical Therapy Department, Zablocki VA Medical Center, Milwaukee, WI 53295.
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MeSH Terms
Aging / physiology*
Muscles / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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