Article

OBJECTIVES: To examine the (1) intrarater, interrater, and test-retest
reliability of the 5-repetition sit-to-stand test (5-repetition STS test) scores,
(2) correlation of 5-repetition STS test scores with lower-limb muscle strength
and balance performance, and (3) cut-off scores among the 3 groups of subjects:
the young, the healthy elderly, and subjects with stroke. DESIGN: Cross-sectional
study. SETTING: University-based rehabilitation center. PARTICIPANTS: A
convenience sample of 36 subjects: 12 subjects with chronic stroke, 12 healthy
elderly subjects, and 12 young subjects. INTERVENTIONS: Not applicable. MAIN
OUTCOME MEASURES: 5-Repetition STS test time scores; hand-held dynamometer
measurements of hip flexors, and knee flexors and extensors; ankle dorsiflexors
and plantarflexors muscle strength; Berg Balance Scale (BBS); and limits of
stability (LOS) test using dynamic posturography. RESULTS: Excellent intrarater
reliability of intraclass correlation coefficient (ICC) (range, .970-.976),
interrater reliability (ICC=.999), and test-retest reliability (ICC range,
.989-.999) were found. Five-repetition STS test scores were also found to be
significantly associated with the muscle strength of affected and unaffected knee
flexors (rho=-.753 to -.830; P<.00556) of the subjects with stroke. No
significant associations were found between 5-repetition STS test and BBS and LOS
tests in subjects with stroke. Cut-off scores of 12 seconds were found to be
discriminatory between healthy elderly and subjects with stroke at a sensitivity
of 83% and specificity of 75%. CONCLUSIONS: The 5-repetition STS test is a
reliable measurement tool that correlates with knee flexors muscle strength but
not balance ability in subjects with stroke.
CI - Copyright 2010 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS