2011 Fiscal Year Final Research Report
Relationship between cortical oxygenation in the motor area and cardiovascular responses during preparation for exercise
| Project/Area Number |
21700595
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Physical education
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| Research Institution | Nihon University |
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Principal Investigator |
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| Research Collaborator |
SADAMOTO Tomoko 日本女子体育大学, 教授 (30201528)
TSUNASHIMA Hitoshi 日本大学, 生産工学部, 教授 (30287594)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 脳高次機能学 / 循環調節 |
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| Research Abstract |
The present study investigated the relationship between the activation in the motor cortex(MCx) and cardiovascular responses during preparation for and after starting right handgrip exercise. We measured levels of oxygenated hemoglobin(oxyHb), deoxygenated hemoglobin(deoxyHb) and total hemoglobin(totalHb) in the MCx by near-infrared spectroscopy and simultaneously recorded heart rate(HR) and mean arterial blood pressure. We studied three experiment sessions and obtained any suggestions ; (1) During preparation period for exercise, the increases in HR and muscle flow rate were coupled with the increase in the MCx activation. (2) The differential values of the oxyHb concentration in the MCx were positively correlated with HR changes during preparation period for exercise. (3) the MCx activities and sensory cortex responses after starting handgrip exercise are not affected by MCx activation or the increase in HR related to central command that develops during preparation for exercise.
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[Remarks] 岩館雅子,柳沢一機,綱島均、運動準備期の予測性循環反応と関連する大脳皮質領域の検討、日本大学学部連携研究推進シンポジウム、第2回NU-Brainシンポジウム(光脳機能イメージングの研究開発および臨床応用に関するシンポジウム)、2011年11月5日、日本大学理工学部シンポジウム
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[Remarks] 岩館雅子、NIRSを用いた運動準備期の脳活動と循環応答、日本大学学部連携研究推進シンポジウム、第1回NU-BRAINシンポジウム-光脳機能イメージングの研究開発および臨床応用に関するシンポジウム-、2010年9月5日、東京シンポジウム
