Dietary nitrate supplementation in COPD: An acute, double-blind, randomized, placebo-controlled, crossover trial

摘要

Background: The acute consumption of dietary nitrate has been shown to improve exercise capacity in athletes, healthy adults and subjects with peripheral vascular disease. Many COPD patients have reduced exercise capacity. We hypothesized that acute nitrate consumption might increase incremental shuttle walk test (ISWT) distance in COPD subjects.