Matsuse Hiroo, Shiba Naoto, Takano Yoshio, Yamada Shin, Ohshima Hiroshi, Tagawa Yoshihiko
Division of Rehabilitation, Kurume University Hospital, 67 Asahi-machi, Kurume, Fukuoka, Japan.
J Rehabil Res Dev. 2013;50(4):545-54. doi: 10.1682/jrrd.2012.04.0067.
A hybrid training system (HTS) has been developed as the combined application of electrical stimulation (ES) and volitional contractions (VC), using electrically stimulated eccentric antagonist muscle contractions as a resistance to voluntary agonist muscle contractions. The purpose of the present study is to compare the metabolic cost between cycling exercise using HTS as added resistance (HTC) and unloaded cycling exercise (ULC). Twelve male subjects exercised on a leg cycle ergometer. After 5 min rest and 5 min warm up, they performed ULC for 5 min or HTC for 5 min. During rest and each exercise, the steady state of oxygen uptake (VO2), carbon dioxide output (VCO2), expired ventilation (VE), respiratory exchange ratio (RER), and heart rate (HR) were measured. The values of VO2, VCO2, VE, and HR during HTC were significantly greater than during ULC (p < 0.05). Relative VO2 was 16.7% +/- 2.1% of peak VO2 during ULC, and it was 21.1% +/- 3.4% during HTC. However, there was no significant difference in RER between ULC and HTC. These findings indicate that the combined application of VC and ES could lead to a greater increase in metabolic cost. HTS seems to be applicable as a resistance of motion.
一种混合训练系统（HTS）已被开发出来，它将电刺激（ES）和自主收缩（VC）结合应用，利用电刺激的离心拮抗肌收缩作为对自主主动肌收缩的阻力。本研究的目的是比较使用HTS作为附加阻力的骑行运动（HTC）和无负荷骑行运动（ULC）之间的代谢成本。12名男性受试者在腿部自行车测力计上进行运动。在休息5分钟和热身5分钟后，他们进行5分钟的ULC或5分钟的HTC。在休息和每次运动期间，测量摄氧量（VO2）、二氧化碳排出量（VCO2）、呼出通气量（VE）、呼吸交换率（RER）和心率（HR）的稳定状态。HTC期间的VO2、VCO2、VE和HR值显著高于ULC期间（p < 0.05）。ULC期间相对VO2为峰值VO2的16.7% +/- 2.1%，HTC期间为21.1% +/- 3.4%。然而，ULC和HTC之间的RER没有显著差异。这些发现表明，VC和ES的联合应用可能导致代谢成本的更大增加。HTS似乎可用作运动阻力。
