The Effect of Muscle Contraction Velocity on Cardiorespiratory Responses to Repetitive Isokinetic Exercise in Humans
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- Hayashi Naoyuki
- School of Health and Sport Sciences and Graduate School of Engineering Sciences, Osaka University
書誌事項
- タイトル別名
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- Effect of Muscle Contraction Velocity on Cardiorespiratory Responses to Repetitive Isokinetic Exercise in Humans
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説明
We investigated the effect of muscle contraction velocity on cardiorespiratory responses during exercise. Eight males (23 ± 2 years, 175 ± 5 cm, 64 ± 6 kg, mean ± SD) performed 3-min repetitive one-leg extension exercises at various angular velocities (30, 60, 120, and 240 deg/s) with a controlled relaxation interval, relatively constant (duty cycle = 1:1, A trial) and absolutely constant (relaxation time = 0.75 s, B trial) at a total work of 2,100–2,400 J in an isokinetic mode, using a Cybex II dynamometer. We measured heart rate (HR), mean blood pressure (MAP), minute ventilation (V˙E), and oxygen uptake (V˙O2) during the exercise. The angular velocity significantly affected the increase in HR, MAP, V˙E, and V˙O2 at the end of exercise from resting in both A and B trials (e.g., MAP: 12 ± 2, 10 ± 2, 11 ± 2, and 18 ± 2 mmHg in the A trial). The result suggests that muscle contraction velocity affects cardiorespiratory responses during repetitive isokinetic exercise.<br>
収録刊行物
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- The Japanese Journal of Physiology
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The Japanese Journal of Physiology 53 (5), 327-333, 2003
一般社団法人 日本生理学会
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詳細情報 詳細情報について
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- CRID
- 1390282680017767424
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- NII論文ID
- 130004435876
- 80016436154
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- NII書誌ID
- AA00691224
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- COI
- 1:STN:280:DC%2BD2c%2Fos1GksQ%3D%3D
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- ISSN
- 18811396
- 0021521X
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- NDL書誌ID
- 6832314
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- PubMed
- 14975178
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
