Document Type

Article

Language

eng

Format of Original

3 p.

Publication Date

3-2015

Publisher

Wiley

Source Publication

Muscle & Nerve

Source ISSN

1097-4598

Original Item ID

doi: 10.1002/mus.24520

Abstract

Introduction: Stroke-related changes in maximal dynamic hip flexor muscle fatigability may be more relevant functionally than isometric hip flexor fatigability. Methods: Ten chronic stroke survivors performed 5 sets of 30 hip flexion maximal dynamic voluntary contractions (MDVC). A maximal isometric voluntary contraction (MIVC) was performed before and after completion of the dynamic contractions. Both the paretic and nonparetic legs were tested. Results: Reduction in hip flexion MDVC torque in the paretic leg (44.7%) was larger than the nonparetic leg (31.7%). The paretic leg had a larger reduction in rectus femoris EMG (28.9%) between the first and last set of MDVCs than the nonparetic leg (7.4%). Reduction in paretic leg MDVC torque was correlated with self-selected walking speed (r2 = 0.43), while reduction in MIVC torque was not (r2 = 0.11). Conclusions: Reductions in maximal dynamic torque of paretic hip flexors may be a better predictor of walking function than reductions in maximal isometric contractions.

Comments

Accepted version. Muscle & Nerve, Vol. 51, No. 3 (March 2015): 446–448. DOI. © 2015 Wiley. Used with permission.

This is the peer reviewed version of the following article: "Stroke-related Effects on Maximal Dynamic Hip Flexor Fatigability and Functional Implications," Muscle & Nerve, Vol. 51, No. 3 (March 2015): 446–448 which has been published in final form at DOI. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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