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. 2017 Jun 5;15(2):182–219. doi: 10.1177/1479972317709642

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© The Author(s) 2017

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 4. — Effect of aerobic, resistance, combined aerobic and resistance training and NMES on various measures of quadriceps strength in patients with COPD expressed as weighted means of relative change (percentage of baseline). Values on top of the bars are the number of patients with COPD. NMES: neuromuscular electrical stimulation.