Qiu Zhi-Hui, Guo Hong-Xi, Lu Gan, Zhang Ning, He Bai-Ting, Zhou Lian, Luo Y M, Polkey M I
State Key Laboratory of Respiratory Disease, Guangzhou Medical University, 151 Yanjiang Road, Guangzhou, China.
Jiangsu Province Official Hospital, Nanjing 210024, China.
Respir Physiol Neurobiol. 2016 Jan 15;221:30-4. doi: 10.1016/j.resp.2015.10.019. Epub 2015 Nov 11.
We compared the physiological work, judged by oxygen uptake, esophageal pressure swing and diaphragm electromyography, elicited by Tai Chi compared with that elicited by constant rate treadmill walking at 60% of maximal load in eleven patients with COPD (Mean FEV1 61% predicted, FEV1/FVC 47%). Dynamic hyperinflation was assessed by inspiratory capacity and twitch quadriceps tension (TwQ) elicited by supramaximal magnetic stimulation of the femoral nerve was also measured before and after both exercises. The EMGdi and esophageal pressure at the end of exercise were similar for both treadmill exercise and Tai Chi (0.109±0.047 mV vs 0.118±0.061 mV for EMGdi and 22.3±7.1 cmH2O vs 21.9±8.1 cmH2O for esophageal pressure). Moreover the mean values of oxygen uptake during Tai Chi and treadmill exercise did not differ significantly: 11.3 ml/kg/min (51.1% of maximal oxygen uptake derived from incremental exercise) and 13.4 ml/kg/min (52.5%) respectively, p>0.05. Respiratory rate during Tai Chi was significantly lower than that during treadmill exercise. Both Tai Chi and treadmill exercise elicited a fall in IC at end exercise, indicating dynamic hyperinflation, but this was statistically significant only after treadmill exercise. TwQ decreased significantly after Tai Chi but not after treadmill. We conclude that Tai Chi constitutes a physiologically similar stimulus to treadmill exercise and may therefore be an acceptable modality for pulmonary rehabilitation which may be culturally more acceptable in some parts of the world.
我们比较了11名慢性阻塞性肺疾病患者（平均第一秒用力呼气容积占预计值的61%，第一秒用力呼气容积/用力肺活量为47%）练习太极拳与在最大负荷的60%下进行恒速跑步机行走时，通过摄氧量、食管压力波动和膈肌肌电图判断的生理功。通过吸气容量评估动态肺过度充气，并在两种运动前后测量经股神经超强磁刺激引发的股四头肌抽搐张力（TwQ）。跑步机运动和太极拳运动结束时的膈肌肌电图和食管压力相似（膈肌肌电图分别为0.109±0.047 mV和0.118±0.061 mV，食管压力分别为22.3±7.1 cmH₂O和21.9±8.1 cmH₂O）。此外，太极拳运动和跑步机运动期间的平均摄氧量值无显著差异：分别为11.3 ml/kg/min（递增运动得出的最大摄氧量的51.1%）和13.4 ml/kg/min（52.5%），p>0.05。太极拳运动期间的呼吸频率显著低于跑步机运动期间。太极拳和跑步机运动在运动结束时均引起吸气容量下降，表明存在动态肺过度充气，但仅在跑步机运动后具有统计学意义。太极拳运动后TwQ显著下降，而跑步机运动后未下降。我们得出结论，太极拳对跑步机运动构成生理上相似的刺激，因此可能是肺康复的一种可接受方式，在世界某些地区可能在文化上更容易被接受。
