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Arch Phys Med Rehabil. 2010 Feb;91(2):215-20. doi: 10.1016/j.apmr.2009.10.009.

Stability limits, single-leg jump, and body awareness in older Tai Chi practitioners.

Author information

1
Section of Physiotherapy, Department of Health Sciences, Lund University, Lund, Sweden.

Abstract

DESIGN:

Cross-sectional study.

SETTING:

University-based rehabilitation center.

PARTICIPANTS:

Tai Chi practitioners (n=24; age+/-SD, 68.5+/-6.6 y) and control subjects (n=20; age, 71.3+/-6.7 y) 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.

PMID:
20159124
DOI:
10.1016/j.apmr.2009.10.009
[Indexed for MEDLINE]

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