| Project/Area Number |
07680108
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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 | Nagoya University |
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Principal Investigator |
SHIMAOKA Midori The Research Center of Health, Physical fitness and Sports Associate professor, 総合保健体育科学センター, 助教授 (30135389)
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| Co-Investigator(Kenkyū-buntansha) |
HIRUTA Shuichi The Research Center of Health, Physical fitness and Sports Associate professor, 総合保健体育科学センター, 助教授 (30173272)
ONO Yuichiro School of Medicine Associate professor, 医学部, 助教授 (80135334)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1996: ¥100,000 (Direct Cost: ¥100,000)
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| Keywords | lifting / heart rate / oxygen uptake / lactate / 重量 / 乳酸 / 心拍数 / 酸素摂取量 / 持ち上げ作業 / 筋力 / 作業強度 / 補助具 |
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| Research Abstract |
This research was designed to investigate the influence of lifting on physiological indexes and to examine ralations between the influence and the level of physical strength. Twelve female students lifted a oblong box (L29.2cm*W25.4cm*H21.6cm) weighing 6.9kg at tempo of 1 lift per 10 seconds for 15 minutes. The box weight was set up on the basis of the limitation of work load derived from the NIOSH formula. The average heart rate and the average intensity of work load were 103.7bpm and 19.2% of maximal oxygen uptake during the work. Before and after the work, the average density of blood lactate somewhat increased (0.563 mmo/L to 0.851mmol/L) but its increment was not statistically significant. On the other hand, the correlation coefficient (r=-0.637) between the increase rate of the blood lactate density and the arm strength indicated the significantly negative interrelation. These results suggested that the workers with lower strength should pay attention to their work load, even though the work load was within the standard limit.
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