Home-Based, Moderate-Intensity Exercise Training Using a Metronome Improves the Breathing Pattern and Oxygen Saturation During Exercise in Patients With COPD
Home-Based, Moderate-Intensity Exercise Training Using a Metronome Improves the Breathing Pattern and Oxygen Saturation During Exercise in Patients With COPD
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DOI：
10.1097/hcr.0000000000000360
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发表时间：
2018-11-01
影响因子：
3.8
通讯作者：
Cogo, Annalisa
中科院分区：
文献类型：
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作者：
Bernardi, Eva;Pomidori, Luca;Cogo, Annalisa
目的：慢性阻塞性肺疾病（COPD）患者肺康复的一个众所周知但研究较少的作用是呼吸模式向更有效模式的变化（潮气量[V-T]更高，呼吸频率更低）。有证据表明，这种变化只能通过有监督的高强度运动训练（ExTr）来实现。然而，有些患者没有这样的计划，或者无法以更高的强度锻炼。我们评估了12周、中等强度、使用节拍器的家庭监测ExTr项目对COPD患者运动期间呼吸模式、血氧饱和度（SpO（2））和呼吸困难的影响。方法：21例COPD患者（7名女性，年龄64 - 85岁）进行了肺量测定，增量，以及训练前后在跑步机上进行耐力步行测试（以最大步行速度的60%）。在耐力测试期间，患者配备了一台仪器，持续监测通气量（V-E）、呼吸模式和SpO（2）。患者在家中进行中等强度的运动训练，12 wk，30 min/d，至少4 d/w。结果：16例患者完成了步行程序。训练后呼吸模式有明显改变（V-E和V-E/V-T比值降低; P
Purpose: One of the well-known but less-investigated effects of pulmonary rehabilitation in patients with chronic obstructive pulmonary disease (COPD) is the change in breathing pattern toward a more effi cient one (higher tidal volume [V-T], lower breathing frequency). Evidence suggests this change can be obtained only with supervised, high-intensity exercise training (ExTr). However, some patients either do not have such programs available or are unable to exercise at higher intensity. We evaluated the effects of a 12-wk, moderate-intensity, home-monitored ExTr program using a metronome on the breathing pattern, oxygen saturation (SpO(2)), and dyspnea during exercise in patients with COPD.Methods: Twenty-one patients with COPD (7 female, aged 64-85 yr) performed spirometry, incremental, and endurance walking tests (at 60% of maximal walking speed) on a treadmill before and after training. During the endurance test, patients were equipped with an instrument that continuously monitored ventilation (V-E), breathing pattern, and SpO(2). Patients trained at home for 12 wk, 30 min/d for at least 4 d/wk at moderate intensity. A metronome paced the walking speed.Results: Sixteen patients completed the program. After training, a signifi cant change was observed in breathing pattern (lower V-E and V-E/V-T ratio; P