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北海道大学大学院教育学研究院紀要 = Bulletin of Faculty of Education, Hokkaido University >
第120号 >


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Title: 長時間一定負荷運動時の心拍ドリフトと自律神経活動の関係
Other Titles: Relationship Between Heart Rate Drift and Autonomic Nerve Activity During Prolonged Constant-load Exercise
Authors: 連, 長順1 Browse this author
有光, 琢磨2 Browse this author →KAKEN DB
山中, 亮3 Browse this author
アフルンデ, ロガイエ4 Browse this author
白川, 和希5 Browse this author
小田, 史郎6 Browse this author →KAKEN DB
柚木, 孝敬7 Browse this author →KAKEN DB
矢野, 徳郎8 Browse this author →KAKEN DB
Authors(alt): Lian, Chang-Shun1
Arimitsu, Takuma2
Yamanaka, Ryo3
Afroundeh, Roghhayye4
Shirakawa, Kazuki5
Oda, Shiro6
Yunoki, Takahiro7
Yano, Tokuo8
Keywords: 長時間運動
Prolonged exercise
Heart rate
Sympathetic nerve activity
Parasympathetic nerve activity
Issue Date: 30-Jun-2014
Publisher: 北海道大学大学院教育学研究院
Journal Title: 北海道大学大学院教育学研究院紀要
Volume: 120
Start Page: 45
End Page: 52
Abstract: 本研究では,長時間一定負荷運動時に観察される心拍数(HR)の漸増現象(HR drift)と心臓自律神経活動の関連性を検討するため,7 名の健常男子大学生を対象に自転車エルゴメーターを用いて60 分の長時間一定負荷運動テストを実施した。自律神経活動はHR 変動を周波数分析することによって評価した。長時間一定負荷運動の前半(3-30 分)においては,HR driftの発生は交感神経活動に関連せず,副交感神経活動に一部関連していると考えられた。運動の後半(30-60 分)におけるHR drift は自律神経活動によって説明できず,運動ストレスなどの因子と関連する可能性が考えられた。
The aim of this study was to determine the relationship between heart rate (HR) drift and cardiac autonomic nerve activity during constant-load prolonged exercise. Seven healthy men performed a moderate-intensity (about 60% of peak oxygen uptake) 60-min cycling exercise. Autonomic nerve activity was evaluated by the frequency analysis of HR variability. The powers of high frequency (HF, 0.15-0.4 Hz), low frequency (LF, 0.04-0.15 Hz) and LF to HF ratio (LF/HF) components of HR Variability (HRV) have been shown to estimate cardiac vagal and sympathetic activities. The results showed that HR was rapidly increased from (67 ± 8 bpm) to (131 ± 14 bpm) at the 3rd minute after start from the state of rest (Fig. 2, P<0.05), thereafter, at the first half of the exercise (the 30th minute:146±17 bpm) and the end of the exercise (the 60th minute: 156±13 bpm), where HR was both increased significantly (Fig. 2, P<0.05) . Although the LF/HF showed the tendency (0.05<P=0.087<0.1) to increase from the state of rest (2.90±1.96) to the 3rd minute of exercise (9.35±6.54), after that, it did not show any change at the 30th (9.94±5.24) minute and the end of the exercise (4.99±4.50) (Fig. 2) . The HF was rapidly decreased after 3-minute exercise from the state of rest; at rest: 521.28 ± 307.11 (beats/min) 2/Hz; the 3rd minute: 56.57 ± 45.63 (beats/min) 2/Hz, P<0.05) . Although it showed significantly decreased from 3rd minute to the 30th minute of exercise (0.88±1.12 (beats/min) 2/Hz (P<0.05), HF did not show statistically significant change from the 30th minute to the end of the exercise (0.51 ±0.55 (beats/min) 2/Hz, 0.05<P=0.094<0.1) . The HR drift in the first half of the exercise (3-30 min) was considered not to be related to sympathetic activity, but related to parasympathetic nerve activity. In the last half exercise (30-60 min), the HR drift seemed to be independent of the autonomic nervous activity.
Type: bulletin (article)
Appears in Collections:北海道大学大学院教育学研究院紀要 = Bulletin of Faculty of Education, Hokkaido University > 第120号

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