Pomidori Luca, Campigotto Federica, Amatya Tara Man, Bernardi Luciano, Cogo Annalisa
Sports Biomedical Studies Centre, University of Ferrara, Ferrara, Italy.
J Cardiopulm Rehabil Prev. 2009 Mar-Apr;29(2):133-7. doi: 10.1097/HCR.0b013e31819a0227.
Yoga-derived breathing has been reported to improve gas exchange in patients with chronic heart failure and in participants exposed to high-altitude hypoxia. We investigated the tolerability and effect of yoga breathing on ventilatory pattern and oxygenation in patients with chronic obstructive pulmonary disease (COPD).
Patients with COPD (N = 11, 3 women) without previous yoga practice and taking only short-acting beta2-adrenergic blocking drugs were enrolled. Ventilatory pattern and oxygen saturation were monitored by means of inductive plethysmography during 30-minute spontaneous breathing at rest (sb) and during a 30-minute yoga lesson (y). During the yoga lesson, the patients were requested to mobilize in sequence the diaphragm, lower chest, and upper chest adopting a slower and deeper breathing. We evaluated oxygen saturation (SaO2%), tidal volume (VT), minute ventilation (E), respiratory rate (i>f), inspiratory time, total breath time, fractional inspiratory time, an index of thoracoabdominal coordination, and an index of rapid shallow breathing. Changes in dyspnea during the yoga lesson were assessed with the Borg scale.
During the yoga lesson, data showed the adoption of a deeper and slower breathing pattern (VTsb L 0.54[0.04], VTy L 0.74[0.08], P = .01; i>fsb 20.8[1.3], i>fy 13.8[0.2], P = .001) and a significant improvement in SaO2% with no change in E (SaO2%sb 91.5%[1.13], SaO2%y 93.5%[0.99], P = .02; Esb L/min 11.2[1.1], Ey L/min 10.2[0.9]). All the participants reported to be comfortable during the yoga lesson, with no increase in dyspnea index.
We conclude that short-term training in yoga is well tolerated and induces favorable respiratory changes in patients with COPD.
据报道，源自瑜伽的呼吸法可改善慢性心力衰竭患者以及暴露于高原低氧环境中的参与者的气体交换。我们研究了瑜伽呼吸法对慢性阻塞性肺疾病（COPD）患者通气模式和氧合的耐受性及影响。
纳入11例（3例女性）未曾练习过瑜伽且仅服用短效β2肾上腺素能阻滞剂的COPD患者。通过感应式体积描记法在静息状态下30分钟的自主呼吸（sb）期间以及30分钟的瑜伽课程（y）期间监测通气模式和氧饱和度。在瑜伽课程期间，要求患者依次调动膈肌、下胸部和上胸部，采用更慢、更深的呼吸方式。我们评估了氧饱和度（SaO2%）、潮气量（VT）、分钟通气量（E）、呼吸频率（f）、吸气时间、总呼吸时间、吸气时间分数、胸腹协调性指数以及快速浅呼吸指数。使用Borg量表评估瑜伽课程期间呼吸困难的变化。
在瑜伽课程期间，数据显示采用了更深、更慢的呼吸模式（VTsb 升 0.54[0.04]，VTy 升 0.74[0.08]，P = 0.01；fsb 20.8[1.3]，fy 13.8[0.2]，P = 0.001），且SaO2%有显著改善，而E无变化（SaO2%sb 91.5%[1.13]，SaO2%y 93.5%[0.99]，P = 0.02；Esb 升/分钟 11.2[1.1]，Ey 升/分钟 10.2[0.9]）。所有参与者均报告在瑜伽课程期间感觉舒适，呼吸困难指数未增加。
我们得出结论，瑜伽短期训练耐受性良好，可在COPD患者中引起有利的呼吸变化。
