Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
Evid Based Complement Alternat Med. 2011;2011:726510. doi: 10.1155/2011/726510. Epub 2011 Feb 6.
Transcutaneous Electrical Nerve Stimulation over acupoints (Acu-TENS) facilitates recovery of resting heart rate after treadmill exercise in healthy subjects. Its effect on postexercise respiratory indices has not been reported. This study investigates the effect of Acu-TENS on forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC) in healthy subjects after a submaximal exercise. Eleven male subjects were invited to the laboratory twice, two weeks apart, to receive in random order either Acu-TENS or Placebo-TENS (no electrical output from the TENS unit) over bilateral Lieque (LU7) and Dingchuan (EX-B1) for 45 minutes, before undergoing exercise following the Bruce protocol. Exercise duration, rate of perceived exertion (RPE), and peak heart rate (PHR) were recorded. Between-group FEV1 and FVC, before, immediately after, at 15, 30, and 45minutes postexercise, were compared. While no between-group differences in PHR, RPE, and FVC were found, Acu-TENS was associated with a longer exercise duration (0.9 min (P = .026)) and a higher percentage increase in FEV1 at 15 and 45 minutes postexercise (3.3 ± 3.7% (P = .013) and 5.1 ± 7.5% (P = .047), resp.) compared to Placebo-TENS. We concluded that Acu-TENS was associated with a higher postexercise FEV1 and a prolongation of submaximal exercise.
经皮穴位电刺激（Acu-TENS）可促进健康受试者在跑步机运动后静息心率的恢复。但其对运动后呼吸指数的影响尚未有报道。本研究旨在探讨 Acu-TENS 对健康受试者亚极量运动后第 1 秒用力呼气量（FEV1）和用力肺活量（FVC）的影响。11 名男性受试者被邀请在两周内两次到实验室，以随机顺序接受双侧列缺（LU7）和定喘（EX-B1）的 Acu-TENS 或假电刺激（TENS 仪无电流输出）治疗，时长 45 分钟，然后按照 Bruce 方案进行运动。记录运动持续时间、感觉用力程度（RPE）和峰值心率（PHR）。比较运动前后即刻、15、30 和 45 分钟时的组间 FEV1 和 FVC。虽然 PHR、RPE 和 FVC 无组间差异，但与假电刺激相比，Acu-TENS 与更长的运动持续时间（0.9 分钟（P =.026））和运动后 15 分钟和 45 分钟时 FEV1 的更高百分比增加（3.3 ± 3.7%（P =.013）和 5.1 ± 7.5%（P =.047））相关。我们得出结论，Acu-TENS 与运动后 FEV1 增加和亚极量运动时间延长有关。
