1993 Fiscal Year Final Research Report Summary
A study on an optimal exercise intensity for enhancing peripheral circulation.
| Project/Area Number |
04680145
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
体育学
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| Research Institution | Japan Women's College of Physical Education |
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Principal Investigator |
KAGAYA Atsuko Japan Women's College of Physical Education, Faculty of Physical Education, Research Institute of Physical Fitness, Professor, 体育学部・基礎体力研究所, 教授 (80083096)
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| Project Period (FY) |
1992 – 1993
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| Keywords | training / peripheral circulation / foreamr blood flow / 20% MVC / 30% MVC |
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| Research Abstract |
The purpose of the present study was to determine an optimal exercise intensity to enhance peripheral circulation during exercise. The training consested of an exhausting dynamic handgrip at a frequency of 60% contractions/min, conducted 5 days/week for 6 weeks. The load applied corresponded to 20% and 30% MVC.The results obtained were summarized as follows ; 1. Eighteen women aged 18-19 yrs were divided into 2 groups ; training group (T group) and control group (C group). After training at 30% MVC, the number of contractions in T group increased significantly. The blood flow immediately after exhausting exercise did not change significantly. In C group, no significant changes in the circulatory parameters were observed.
2. The right forearms of 5 women participated in the training at 20% MVC and the left forearms served as control. The number of contractions increased significantly after training, accompanied by augmented peak blood flow in the trained forearm from 24.3(〕SY.+-.〔)3.1 ml/100ml/min (pre-training) to 31.1(〕SY.+-.〔)3.2 ml/100ml/min (post-training)
3. Theses results suggested that the training at 30% MVC could improve musclar endurance without increase in blood supply, while the 20% MVC training would contibute to improve oxygen transport capacity.
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