Article

OBJECTIVES: To systematically review (1) psychometric properties of criterion
isokinetic dynamometry testing of muscle strength in persons with poststroke
hemiplegia (PPSH); and (2) literature that compares muscle strength in patients
poststroke with that in healthy controls assessed by criterion isokinetic
dynamometry. DATA SOURCES: A systematic literature search of 7 databases was
performed. STUDY SELECTION: Included studies (1) enrolled participants with
definite poststroke hemiplegia according to defined criteria; (2) assessed muscle
strength or power by criterion isokinetic dynamometry; (3) had undergone peer
review; and (4) were available in English or Danish.
DATA EXTRACTION: The
psychometric properties of isokinetic dynamometry were reviewed with respect to
reliability, validity, and responsiveness. Furthermore, comparisons of strength
between paretic, nonparetic, and comparable healthy muscles were reviewed. DATA
SYNTHESIS: Twenty studies covering 316 PPSH were included. High intraclass
correlation coefficient (ICC) inter- and intrasession reliability was reported
for isokinetic dynamometry, which was independent of the tested muscle group,
contraction mode, and contraction velocity. Slightly higher ICC values were found
for the nonparetic extremity. Standard error of the mean (SEM) values showed that
a change of 7% to 20% was required for a real group change to take place for most
muscle groups, with the knee extensors showing the smallest SEM% values. The
muscle strength of paretic muscles showed deficits when compared with both
healthy and nonparetic muscles, independent of muscle group, contraction mode,
and contraction velocity. Nonparetic muscles only showed minor strength
impairments when compared with healthy muscles. CONCLUSIONS: Criterion isokinetic
dynamometry is a reliable test in persons with stroke, generally showing marked
reductions in muscle strength of paretic and, to a lesser degree, nonparetic muscles when compared with healthy controls, independent of muscle group,
contraction mode, and contraction velocity.
CI - Copyright (c) 2016 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS