Standing Balance in Healthy Subjects. Evaluation of a Quantitative Test Battery on a Force Platform
C Ekdahl, G B Jarnlo, S I Andersson
Department of Community Health Sciences, Lund University, Sweden.
A quantitative battery of tests for standing balance is needed in the assessment of functional impairments. The aims of the present study were to obtain stabilometric reference values for healthy females and males, 20-64 years of age, on a stable computerized force platform (AMTI) and to relate the balance data thus obtained to some traditional functional balance tests. Altogether, 152 subjects performed a series of tests. The test battery on the force platform comprised tests of standing with feet close together or on one leg while looking straight ahead or while blindfolded. Traditional functional balance tests were checked and various background data were collected through a questionnaire. Results of a separate test-retest reliability study of the test battery given on the force platform appeared promising, especially for the tests with eyes open. In the main study, results obtained on the force platform correlated significantly (p less than 0.001) with results of most of the functional tests. Women showed higher standing balance as compared with men. The results suggest the importance of relating the test-data not only to age but also to sex.
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