著者

大柿 哲朗 斎藤 篤司

出版者

日本体力医学会

雑誌

体力科學 (ISSN:0039906X)

巻号頁・発行日

vol.38, no.6, 1989-12-01

著者

久保山 直己 大柿 哲朗

出版者

九州大学健康科学センター

雑誌

健康科学 (ISSN:03877175)

巻号頁・発行日

vol.27, pp.1-12, 2005

被引用文献数

1

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Voluntary movement is performed by coordinated action of several muscles.Even during simple movement such as finger tapping, it is not performed by single muscular contraction. Therefore the brain region where controls coordinated muscles to carry out voluntary movement must be activated activity. Activated region and degree are different by movement forms and movement frequency. Relationship between movement and brain activity is gradually becoming clear. However, every phenomenon of movement control is not known yet. There is blood flow distribution in brain during movement. Currently, a point of view that blood flow of the whole brain does not increase drastically by simple movement dominant. This knowledge suggests the possibility that blood flow distribution in brain changes into within movement. That is to say, the increase and decrease of blood volume may occur by each movement in cerebral region. To make clear the relationship between movement and brain activity, it will be necessary for investigations about blood flow distribution in brain with movement. In addition, we discussed Nerve placement of cerebral motor cortex and output of a muscle contraction signal.

著者

浅井 英典 藤本 弘一郎 大柿 哲朗

出版者

日本生理人類学会

雑誌

日本生理人類学会誌 (ISSN:13423215)

巻号頁・発行日

vol.6, no.3, pp.45-54, 2001-08-25 (Released:2017-07-28)

参考文献数

40

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The effect of resistance training for five months was examined. Middle-aged and elderly women without an exercise habit were divided into a resistance training group (RT group), an aerobic training group (AE group), and a control group (CNT group). A questionnaire survey examined QOL, and physical characteristics, bone mineral density and physical fitness were measured before and after the intervention period. A significant improvement in the RT group was seen in regard to subjective health degree, everyday feeling, human relation and life satisfaction degree. The subjective health degree increased significantly in the AE group, while no change was seen in the CNT group in regard to all iteme. Knee extension strength, knee flexion strength, plantar flexion strength, and stepping improved significantly in the RT group. It was suggested that resistance training that could be carried out easily to allow the physical fitness of middle-aged and elderly women improve prartially, and that it an available method of improving psychological items such as subjective health and degree of life satisfaction.

著者

内藤 貴司 山口 裕嗣 大柿 哲朗

出版者

一般社団法人 日本体育・スポーツ・健康学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.61, no.1, pp.103-113, 2016 (Released:2016-06-17)

参考文献数

40

被引用文献数

3 1

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The timing at which ice is ingested prior to exercise may be important for optimizing internal pre-cooling effects. However, previous reports have not evaluated the influence of timing of ice ingestion on internal pre-cooling in the heat. The purpose of this study was to investigate the effects of differences in the timing of ice ingestion on endurance cycling capacity, body temperature and perceptional sensation during heat stress. Seven healthy males [age=26±2 yr, height=1.71±0.04 m, body mass=63.6±2.8 kg, surface area=1.74±0.03 m2, VO2max=49.7±4.4 ml・kg−1・min−1] ingested ice for 30 min before exercise under 3 separate conditions: ice ingestion at 30-(30D), 15-(15D) and 5-(5D) minute intervals. The total volume of ice ingestion was identical during 30D, 15D, 5D and was divided equally by the number of times drunk in each experiment. Subjects performed cycling to exhaustion at 70%VO2max in a hot environment (35℃ room temperature and 30% relative humidity). Rating of thermal sensation was lower in the 5D group at 15 min period during exercise than those under the other conditions (p<.05). Rating of perceived exertion was lower in the 5D group at 20 and 25 min periods during exercise than those under the other conditions (p<.05). There were no significant differences in rectal temperature, mean skin temperature or exhaustion time between the 3 conditions. These results suggest that there are no significant differences in exhaustion time or rectal temperature if the total volume of ice ingestion is identical, although ice ingestion until just before exercise attenuated the perceptual sensation of heat during exercise in a hot environment.

著者

田中 純也 渋谷 顕一 大柿 哲朗

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.54, no.2, pp.133-142, 2005 (Released:2006-12-01)

参考文献数

26

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Exercise intensity has been identified as a major determinant of the excess post-exercise oxygen consumption (EPOC). However, no studies have compared the prolonged EPOC after supramaximal intermittent exercise and supramaximal continuous exercise. Six young healthy male [age=26±3 (mean±SD) yr ; stature=175.4±5.7 cm ; body weight=66.8±6.7 kg ; maximal oxygen uptake (VO2max)=44.1±8.5 ml/kg/min] xercised on separate days on a cycle ergometer at two equated total energy expenditures (intermittent exercise : 7×30-second intervals at 150%VO2max with intervening 15-seconds rest periods ; continuous exercise : 5 min at 105%VO2max) and then sat quietly in an armchair for 3h. A control trial without any exercise was also performed in a counterbalanced research design. The VO2, carbon dioxide output (VCO2), pulmonary ventilation (VE), respiratory exchange ratio (RER), heart rate (HR) and blood lactate concentration (LA) were measured before exercise, during exercise and during the 3-h recovery period. The mean VO2 after intermittent trial at 150%VO2max were higher than these of the control trial and the continuous trials at 105%VO2max for 3-h recovery periods (p<0.05). The 3-h EPOC value for intermittent exercise trial (10.5±2.4L) was significantly greater than that of continuous exercise trial (4.8±2.7L) (p<0.05). The mean RER values for intermittent exercise trial were significantly lower than those of the control trial during 60-180 min post-exercise (p<0.05). We examined the effect of supramaximal exercise intensity on the magnitude of 3-h EPOC after 12-fasting. In the present study, 3-h EPOC was significantly greater for supramaximal intermittent exercise compared with the supramaximal continuous exercise when the amounts of work output performed are same. Therefore, our results indicate that exercise intensity may be a primary factor of 3-h EPOC even in a supramaximal exercise and that one of mechanisms for the 3-h EPOC would be related to the promoted lipid metabolism.