School of Physiotherapy and Exercise Science, Faculty of Health Sciences, Curtin University, Western Australia, Australia (Drs Hill, Cavalheri, Ng, S. C. Jenkins, and Eastwood and Ms Chao); Institute for Respiratory Health, Western Australia, Australia (Drs Hill, Cavalheri, S. C. Jenkins, and Eastwood and Ms Cecins); Physiotherapy Department, Singapore General Hospital, Singapore (Ms Chao and Dr Ng); Allied Health, South Metropolitan Health Service, Perth, Western Australia, Australia (Dr Cavalheri); Discipline of Physiotherapy, The University of Sydney, New South Wales, Australia (Drs Wootton, McKeough, and Alison); Chronic Disease Community Rehabilitation Service, Northern Sydney Local Health District, New South Wales, Australia (Dr Wootton); Departments of Physiotherapy (Dr S. C. Jenkins and Ms Cecins) and Pulmonary Physiology & Sleep Medicine (Drs Eastwood and Hillman), Sir Charles Gairdner Hospital, Western Australia, Australia; Centre for Sleep Science, School of Human Sciences, The University of Western Australia, Western Australia, Australia (Drs Eastwood and Hillman); Department of Thoracic Medicine, Concord Hospital, New South Wales, Australia (Dr C. Jenkins); and Physiotherapy Department, Sydney Local Health District, Sydney, New South Wales, Australia (Drs Spencer and Alison).
J Cardiopulm Rehabil Prev. 2021 Jul 1;41(4):264-266. doi: 10.1097/HCR.0000000000000575.
The endurance shuttle walk test (ESWT) was used to evaluate ground-based walking training in chronic obstructive pulmonary disease. During pre-training testing, those who walked 5-10 min on the first ESWT with minimal symptoms performed additional ESWTs at increasing speeds until they were at least moderately symptomatic and terminated the test between 5 and 10 min. This report compares participant characteristics and test responsiveness with participants grouped according to whether or not faster walking speeds were selected for the ESWT during pre-training testing.
We conducted a retrospective analysis of data collected in the intervention group during a randomized controlled trial. The intervention was supervised ground-based walking training, performed two to three times/wk, for 8-10 wk. Prior to and immediately following completion of training, participants completed the 6-min walk test (6MWT), incremental shuttle walk test (ISWT), and ESWT.
Data were available on 77 participants (70 ± 9 yr, forced expiratory volume in the first second of expiration [FEV1] 43 ± 15 % predicted). For those whom a faster speed was selected during the pre-training ESWTs were characterized by milder dyspnea and leg fatigue on completion of the baseline 6MWT and ISWT (P < .05 for all). On training completion, the change in ESWT was greater in those for whom a faster speed was selected (376 ± 344 sec vs 176 ± 274 sec; P = .017).
Participants who report modest symptoms on completion of the pre-training 6MWT or ISWT may achieve a long pre-training ESWT time. In this situation, repeating the pre-training ESWT at a faster walking speed to achieve an exercise time between 5 and 10 min with moderate symptoms may be advantageous.
耐力穿梭步行测试（ESWT）用于评估慢性阻塞性肺疾病的基于地面的步行训练。在训练前测试中，那些在第一次 ESWT 中行走 5-10 分钟且症状轻微的人，会以增加的速度进行额外的 ESWT，直到他们至少出现中度症状，并在 5-10 分钟之间终止测试。本报告比较了根据训练前测试中是否为 ESWT 选择更快的行走速度，将参与者分组后的参与者特征和测试反应性。
我们对一项随机对照试验中干预组收集的数据进行了回顾性分析。干预措施是监督下的基于地面的步行训练，每周进行 2-3 次，持续 8-10 周。在训练前后，参与者完成 6 分钟步行测试（6MWT）、递增穿梭步行测试（ISWT）和 ESWT。
共有 77 名参与者（70±9 岁，第一秒用力呼气量[FEV1]占预计值的 43±15%）的数据可用。对于那些在训练前 ESWT 中选择更快速度的人，在完成基线 6MWT 和 ISWT 时，呼吸困难和腿部疲劳程度较轻（所有 P<.05）。在训练结束时，选择更快速度的人 ESWT 的变化更大（376±344 秒 vs. 176±274 秒；P=.017）。
在完成训练前 6MWT 或 ISWT 时报告症状适度的参与者可能会完成较长的训练前 ESWT 时间。在这种情况下，重复训练前 ESWT 以更快的步行速度进行，以在 5-10 分钟之间达到中度症状的运动时间可能是有利的。
