Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32669
Title: Stability limits, single-leg jump, and body awareness in older Tai Chi practitioners
Authors: Gyllensten, AL
Hui-Chan, CWY
Tsang, WWN 
Keywords: Accidental falls
Aging
Exercise
Rehabilitation
Issue Date: 2010
Publisher: W.B. Saunders
Source: Archives of physical medicine and rehabilitation, 2010, v. 91, no. 2, p. 215-220 How to cite?
Journal: Archives of physical medicine and rehabilitation 
Abstract: Gyllensten AL, Hui-Chan CWY, Tsang WWN. Stability limits, single-leg jump, and body awareness in older Tai Chi practitioners. Objective: To compare stability limits, single-leg jumping, and body awareness in older Tai Chi practitioners and healthy older controls and to determine possible interrelationships among these variables. Design: Cross-sectional study. Setting: University-based rehabilitation center. Participants: Tai Chi practitioners (n=24; age±SD, 68.5±6.6y) and control subjects (n=20; age, 71.3±6.7y) were recruited. Interventions: Not applicable. Main Outcome Measures: Measures included the following: (1) subjects' intentional weight shifting to 8 different spatial positions within their base of support using the limits of stability test, (2) the ability to leave the floor in single-leg jumping and to maintain balance on landing using force platform measurements, and (3) body awareness and movement behaviors using the Body Awareness Scale-Health (BAS-H). Results: The findings showed that Tai Chi practitioners had a significantly better ability to lean further without losing stability and better directional control (P<0.01). They had a better ability to jump off the floor (P<0.05) and to maintain a longer single-leg stance after landing (P<.05) and better overall body awareness (P<.001). The single-leg jumps also correlated significantly with limits of stability measures of movement velocity, endpoint excursions, and maximum excursions but not with directional control. The BAS-H scores correlated significantly with the limits of stability measures except directional control. They also correlated significantly with the ability to jump off the floor and maintain stability after landing. Conclusions: When compared with healthy controls, Tai Chi practitioners had better stability limits, increased ability to perform a single-leg jump, and more stability in landing on 1 leg as well as better body awareness. Significant correlations among limits of stability measures, single-leg jumping tests, and the BAS-H scores indicate the importance of body awareness in limits of stability, single-leg jumping, and landing.
URI: http://hdl.handle.net/10397/32669
ISSN: 0003-9993
EISSN: 1532-821X
DOI: 10.1016/j.apmr.2009.10.009
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