Interaction in peripheral reflexes -Individual difference and training effects
Project/Area Number |
22300213
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Sports science
|
Research Institution | University of Tsukuba |
Principal Investigator |
|
Co-Investigator(Kenkyū-buntansha) |
HONDA Yasushi 筑波大学, 体育系, 教授 (20165616)
|
Project Period (FY) |
2010 – 2012
|
Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2012: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2011: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
|
Keywords | 筋代謝受容器 / 動脈圧反射 / ハンドグリップ運動 / 筋代謝需要器 / 筋代謝受容器反射 / 下肢運動負荷装置 / 心臓副交感神経 / 運動後阻血 / 超音波ドップラー法 / 周波数領域解析 |
Research Abstract |
It was hypothesized that both muscle metaboreflex and arterial barorefelx contribute to regulate the heart rate and blood pressure during exercise and then the two reflexes were interplayed. This study investigated how the interplays changes in the different stimulus levels in muscle metaboreflex and in the different muscles activated (forearm and calf). Further, it was investigated whether the interplays change by the specific exercise training. 1) The increases in heart parasympathetic activity and the sensitivity of the arterial baroreflex on heart rate change (BRS) do not occur with the weak activation of muscle metaboreflex and do occur the above the threshold activation. Above the threshold, there is no gradual increase in heart parasympathetic activity and BRS. 2) The responses in heart parasympathetic activity and BRS during activation of the muscle metaboreflex are different between the different muscles activated. 3) The function of the muscle metaboreflex induced by handgrip exercise is not changed by the specific exercise training in competitive Badminton players.
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Report
(4 results)
Research Products
(36 results)