Key result
Resistance exercise significantly improved muscle strength (SMD 0.6; 95% CI 0.35-0.84), while endurance and combined exercise significantly increased VO2peak in stable COPD patients.
Why the study?
Peripheral skeletal muscle dysfunction is an extrapulmonary manifestation of COPD that can be counteracted by exercise training, but the effects of three major exercise modalities required review.
Do exercise training modalities improve peripheral skeletal muscle mass, strength, and exercise capacity in stable patients with COPD?
Population
1,317 stable COPD patients across 30 randomized controlled trials
Comparison
Endurance, resistance, or combined exercise vs non-exercising control
Design
Systematic review and meta-analysis of randomized controlled trials
Authors
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Exercise training improves muscle strength and capacity in stable COPD, especially with resistance; reinforces rehab guidelines while supporting modality-optimized trials.
Meta-Analysis (n=1,317)
Do exercise training modalities improve peripheral skeletal muscle mass, strength, and exercise capacity in stable patients with COPD?
Standardized Mean Difference: 0.6 (95% CI 0.35–0.84)
Exercise training, particularly resistance exercise, significantly improves peripheral skeletal muscle strength and exercise capacity in stable COPD patients.
Li et al. (2021) conducted a meta-analysis in Stable COPD (n=1,317). Exercise training (endurance, resistance, or combined) vs. Non-exercising control was evaluated on Muscle strength (with resistance exercise) (SMD 0.6, 95% CI 0.35-0.84). Resistance exercise significantly improved muscle strength (SMD 0.6; 95% CI 0.35-0.84), while endurance and combined exercise significantly increased VO2peak in stable COPD patients.
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