In this randomised, crossover trial, 22 patients with severe chronic obstructive pulmonary disease climbed six flights of stairs (108 steps) twice, under two test conditions: (1) energy conservation technique (ECT): participants were asked to rest for at least 5 seconds every three steps and (2) control condition: participants climbed the stairs at their own pace. Significant lower dyspnoea (primary outcome), leg discomfort, minute ventilation and capillary blood lactate under the ECT condition were found, with no change in total task time. Clinical trial registration NCT03564028

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节能技术改善重度 COPD 患者爬楼梯时的呼吸困难：一项随机交叉研究

在这项随机、交叉试验中，22 名患有严重慢性阻塞性肺疾病的患者在两种测试条件下两次爬了 6 层楼梯（108 步）：(1) 节能技术 (ECT)：要求参与者休息至少 5每三步秒和（2）控制条件：参与者以自己的速度爬楼梯。发现在 ECT 条件下呼吸困难（主要结果）、腿部不适、分钟通气量和毛细血管血乳酸显着降低，总任务时间没有变化。临床试验注册 NCT03564028