Background: The mechanisms through which neuromuscular electrical stimulation (NMES) training may improve limb muscle function and exercise tolerance in COPD are poorly understood. We investigated the functional and muscular effects of NMES in advanced COPD. Methods: Twenty of 22 patients with COPD were randomly assigned to NMES (n = 12) or sham (n = 8) training in a double-blind controlled study. NMES was performed on quadriceps and calf muscles, at home, 5 days per week for 6 weeks. Quadriceps and calf muscle cross-sectional area (CSA), quadriceps force and endurance, and the shuttle-walking distance with cardiorespiratory measurements were assessed before and after training. Quadriceps biopsy specimens were obtained to explore the insulin-like growth factor-1/AKT signaling pathway (70-kDa ribosomal S6 kinase [p70S6K], atrogin-1). Results: NMES training improved muscle CSA (P
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Vivodtzev, I., Debigaré, R., Gagnon, P., Mainguy, V., Saey, D., Dubé, A., … Maltais, F. (2012). Functional and muscular effects of neuromuscular electrical stimulation in patients with severe COPD: A randomized clinical trial. Chest, 141(3), 716–725. https://doi.org/10.1378/chest.11-0839
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