Blood Flow Restriction Exercise Training in Chronic Obstructive Pulmonary Disease

<jats:p>Chronic obstructive pulmonary disease (COPD) is a systemic disease that causes progressive airflow limitation, as well as decreases i[1]n skeletal muscle mass, strength, and endurance. Skeletal muscle dysfunction contributes to disease progression by creating a vicious cycle that leads to exercise intolerance, shortness of breath, reduced physical activity levels, and impaired quality of life. Resistance exercise, a key component of pulmonary rehabilitation, is effective in improving muscle function; however, high-intensity exercise can be difficult to implement in patients with COPD because of symptoms and respiratory limitations. Blood flow restriction training (BFRT) is an alternative method that aims to stimulate muscle adaptations by increasing metabolic stress through partial vascular restriction applied to the extremities during low-intensity exercise. This approach appears promising for individuals with low exercise tolerance because it can yield gains in muscle strength and hypertrophy comparable to those achieved with conventional high-load training. The ability to perform BFRT with a low mechanical load may offer a significant advantage in COPD, particularly for patients in the advanced stages of the disease. However, current evidence does not definitively show that BFRT is superior to conventional exercise training. Significant limitations include differences in application protocols, the fact that optimal occlusion pressure and exercise parameters have not yet been established, and the limited availability of long-term safety data. In conclusion, BFRT is a potentially effective method that can complement pulmonary rehabilitation in individuals with COPD; however, well-designed randomized controlled trials with sufficient sample sizes and long-term follow-up are needed to develop evidence-based recommendations for clinical practice.</jats:p>