2013 Fiscal Year Final Research Report
The use of PP interval variability measures to examine autonomic neural control of heart rate during exercise in humans
| Project/Area Number |
23700603
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Rehabilitation science/Welfare engineering
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| Research Institution | Hiroshima University |
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Principal Investigator |
TAKAHASHI Makoto 広島大学, 医歯薬保健学研究院(保), 講師 (50435690)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 心拍変動周波数解析 / 心臓迷走神経活動 / 心拍数 |
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| Research Abstract |
The high-frequency component (HF at 0.15-0.4 Hz) of the power spectrum of RR and PP interval variability during dynamic exercise were assessed using a Wavelet transform to identify cardiac vagal outflow. At 140 beats/min during exercise, HF component of PP interval was significantly larger than that of RR interval.
It has been generally considered that cardiac vagal nerve activity has no influence on HR increases above 100 beats/min. In contradiction to the conventional thought, the present findings indicate that cardiac vagal nervous system remains active at 140 beats/min.
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[Journal Article] Characteristics of patients with severe heart failure exhibiting exercise oscillatory ventilation2013
Author(s)
Ryosuke Matsuki, Tomohiko Kisaka, Ryoji Ozono, Hiroki Kinoshita, Yoshiharu Sada, Noboru Oda, Takayuki Hidaka, Naonori Tashiro, Makoto Takahashi, Kiyokazu Sekikawa, Yoshihiro Ito, Hiroaki Kimura, Hironobu Hamada, Yasuki Kihara
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Journal Title
Clinical and Experimental Hypertension
Volume: 35
Pages: 267-272
Peer Reviewed
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