Punzal P A, Ries A L, Kaplan R M, Prewitt L M
Department of Medicine, University of California, San Diego.
Chest. 1991 Sep;100(3):618-23. doi: 10.1378/chest.100.3.618.
We studied high intensity, symptom-limited, endurance exercise training in 52 patients with COPD participating in a pulmonary rehabilitation program. The patients had moderate to severe airway obstruction and reduced exercise tolerance with ventilatory limitation. The target workload for endurance exercise testing was 95 percent of the baseline maximum treadmill work load. At training weeks 1, 4 and 8, they were training at 85, 84, and 86 percent respectively, of baseline maximum. After rehabilitation, there was an increase in maximal treadmill work load, VO2max, and endurance exercise time, and a decrease in perceived symptoms. Patients who did not reach anaerobic threshold (group 2) were able to train at a higher percentage of maximum exercise tolerance than patients who reached anaerobic threshold (group 1). The increase in exercise performance of both groups, however, was similar. We conclude that patients with moderate to severe COPD can perform exercise training successfully at intensity targets which represent higher percentages of maximum than typically recommended in normal individuals or other patients.
我们对52名参加肺部康复计划的慢性阻塞性肺疾病（COPD）患者进行了高强度、症状限制的耐力运动训练。这些患者存在中度至重度气道阻塞，且运动耐力因通气受限而降低。耐力运动测试的目标工作量为基线最大跑步机工作量的95%。在训练的第1、4和8周，他们分别以基线最大值的85%、84%和86%进行训练。康复后，最大跑步机工作量、最大摄氧量（VO2max）和耐力运动时间增加，自觉症状减少。未达到无氧阈的患者（第2组）比达到无氧阈的患者（第1组）能够以更高比例的最大运动耐力进行训练。然而，两组的运动表现提高程度相似。我们得出结论，中度至重度COPD患者能够以高于正常个体或其他患者通常建议的更高比例的最大值强度目标成功进行运动训练。
