A Comparison of Knee-Extension Torque Production with Biphasic versus Russian Current

Context: Neuromuscular electrical stimulation (NMES) can be used to prevent the atrophy and strength loss associated with immobilization. Objective: To compare the effects of biphasic current and the modulated “Russian” current on muscular torque production during different contraction conditions. D...

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Bibliographic Details
Published in:Journal of sport rehabilitation 2000-08, Vol.9 (3), p.229-239
Main Authors: Holcomb, William R., Golestani, Shahin, Hill, Shante
Format: Article
Language:English
Subjects:
Neuromuscular electrical stimulation
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Summary:Context: Neuromuscular electrical stimulation (NMES) can be used to prevent the atrophy and strength loss associated with immobilization. Objective: To compare the effects of biphasic current and the modulated “Russian” current on muscular torque production during different contraction conditions. Design, Setting, and Participants: In a within-subjects design, 10 healthy subjects in an athletic training laboratory received NMES. Interventions: Isometric knee-extension torque was recorded with the Biodex™ under 4 conditions: maximum voluntary contraction (MVC; control), MVC superimposed with low-intensity stimulation (sham), MVC superimposed with high-intensity stimulation, and high-intensity stimulation only. Main Outcome Measure: Data normalized for body weight were analyzed using a 2 (current type) X 4 (condition) repeated-measures analysis of variance. Results: The main effect for current type was not significant, F1,9 = .03, P = .87.
ISSN:1056-6716
1543-3072
DOI:10.1123/jsr.9.3.229