Acu-TENS对哮喘患者运动后呼气肺容量的影响：随机对照研究
2009/09/16
本试验研究穴位经皮神经电刺激（Acu-TENS）对哮喘患者运动后用力呼气量的影响。30名哮喘患者随机分为以下3组：第1组患者在症状限制性平板运动试验之前接受45分钟的Acu-TENS（针刺穴位：列缺和定喘）；第2组患者在试验前和运动试验中采用类似的Acu-TENS；第3组患者与第1组类似，接受刺激，但装置无电流输出。在运动试验前、试验结束即刻及运动试验后1h内每隔20分钟检测第1秒用力呼气量（FEV1）和用力肺活量（FVC）。
第2组患者的FEV1和FVC运动后显著增加（P=0.015），而第1组患者的FEV1和FVC运动后下降，第3组患者与第1组相似，且下降更为明显，尤其在运动后20min、40min和60min时差异更显著。辅助性Acu-TENS治疗能减少哮喘患者运动后FEV1的下降。
（苏楠 审校）
Ngai SP, Jones AY, Hui-Chan CW, et al.
Respir Physiol Neurobiol. 2009 Jul 31;167(3):348-53. Epub 2009 Jun 18.
Effect of Acu-TENS on post-exercise expiratory lung volume in subjects with asthma-A randomized controlled trial.
Ngai SP, Jones AY, Hui-Chan CW, Ko FW, Hui DS.
Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
This study examined the effect of transcutaneous electrical nerve stimulation applied over acupoints (Acu-TENS) on forced expiratory volume, in patients with asthma, after exercise. Thirty subjects were randomly assigned to three groups. Group 1 received Acu-TENS over acupuncture points Lieque and Dingchuan for 45 min prior to a symptom-limited treadmill exercise test. Group 2 had Acu-TENS similarly applied prior to and throughout the exercise test. Group 3 mimicked Group 1 but without any electrical output from the device. Forced expiratory volume in one second (FEV(1)) and forced vital capacity (FVC) were recorded before, immediately after and at 20-min intervals post-exercise for 1h. Immediately after exercise, FEV(1) and FVC rose in Group 2 (p=0.015), but decreased in Group 1 and more so in Group 3. The differences became even more marked at 20, 40 and 60 min. Adjunctive Acu-TENS therapy appears to reduce decline of FEV(1) following exercise training in patients with asthma.
