Journal of Rehabilitation Research & Development (JRRD)

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Volume 50 Number 4, 2013
   Pages 545 — 554

Abstract — Cycling exercise to resist electrically stimulated antagonist increases oxygen uptake in males: Pilot study

Hiroo Matsuse, MD;1* Naoto Shiba, MD;1 Yoshio Takano, MD;2 Shin Yamada, MD;3 Hiroshi Ohshima, MD;3 Yoshihiko Tagawa, PhD4

1Division of Rehabilitation, Kurume University Hospital, Kurume, Fukuoka, Japan; 2Department of Physical Therapy Faculty of Medical Technology, Teikyo University Fukuoka, Omuta, Fukuoka, Japan; 3Japan Aerospace Exploration Agency, Tsukuba, Ibaraki, Japan; 4Department of Mechanical and Control Engineering, Kyushu Institute of Technology, Kitakyushu, Fukuoka, Japan

Abstract — 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.

Key words: analysis of expired gas, cycling, eccentric, ergometer, exercise intensity, metabolic cost, neuromuscular electrical stimulation, rehabilitation, resistance, training, volitional contraction.

View HTML  ¦  View PDF  ¦  Contents Vol. 50, No. 4
This article and any supplementary materials should be cited as follows:
Matsuse H, Shiba N, Takano Y, Yamada S, Ohshima H, Tagawa Y. Cycling exercise to resist electrically stimulated antagonist increases oxygen uptake in males: Pilot study. J Rehabil Res Dev. 2013;50(4):545–54.

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