| Project/Area Number |
13680077
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
体育学
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| Research Institution | Waseda University (2003)
National Institute of Health and Nutrition (2001-2002) |
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Principal Investigator |
HIGUCHI Mitsuru Waseda University, School of Sport Sciences, Professor, スポーツ科学部, 教授 (20192289)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUSHITA Masao National Institute of Fitness and Sports in Kanoya, Professor, 教授 (40199790)
KAWAKAMI Yasuo Waseda University, School of Sport Sciences, Associate Professor, スポーツ科学部, 助教授 (60234027)
OKA Jun National Institute of Health and Division of Applied Nutrition, Director, 部長 (30194327)
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| Project Period (FY) |
2001 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2003: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2002: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2001: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | rowing / cardiovascular function / plasma lipoprotein profile / muscle mass / leg extension power / 中高年者 / 糖・脂質代謝 / 骨密度 / 酸素摂取量 / 脚伸展筋横断面積 / 運動負荷テスト / 心拍数 / 脚筋力 |
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| Research Abstract |
We evaluated effects of age and rowing on cardiovascular function, blood lipid-lipoprotein profile and muscle mass. Although older oarsmen possessed a lower Vo2max than the young oarsmen, they showed a Vo2max similar to that of the young sedentary men but a higher value than obtained from the older sedentary men. The index of risk factors for CHD in the older oarsmen (LDL-C/HDL-C) was lower than that in the sedentary older men. The results suggest that rowing is an appropriate type of exercise for the promotion of health.
We also evaluated the effects of rowing on the morphology and function of the leg muscle in older people. The leg extensor muscle area (CSA) of the oarsmen was larger that that of the sedentary men. Also the bilateral leg extension power of the oarsmen was larger than that of the sedentary men. Thus, the leg extensor power per CSA was not different between the two groups. The results suggest that rowing prevents age-related muscle wasting and weakness.
This study evaluated oxygen uptake (Vo2) and heart rate (HR) during ergometry rowing (combined arm and leg ; sitting exercise) and treadmill running (leg ; upright exercise) for older people. The HR was lower during ergometry rowing than during treadmill running at a blood lactate concentration of 4mM (151±4 bpm vs. 160±5 bpm) and at a maximal effort (171±7 bpm vs. 177±7 bpm). This was the case although the Vo2 was higher during ergometry rowing than during treadmill running both at a blood lactate concentration of 4mM (3.0±0.4 /min vs. 2.7±0.4 L/min) and at a maximal effort (3.4±0.4 L/min vs. 3.1±0.3 L/min). The results suggest that, in prescription of rowing for older people, the relation between HR and Vo2 for rowing and the attenuated HR response to rowing should be taken into consideration.
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