| Project/Area Number |
09557034
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Public health/Health science
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| Research Institution | Tohoku University |
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Principal Investigator |
TSUJI Ichiro Tohoku University, Graduate School of Medicine, Associate Professor, 大学院・医学系研究科, 助教授 (20171994)
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| Project Period (FY) |
1997 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥9,000,000 (Direct Cost: ¥9,000,000)
Fiscal Year 1999: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1998: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1997: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Keywords | Geriatric Health / Exercise Training / Randomized Controlled Trial / Maximum Oxygen Consumption / Muscle strength / Physical Strength / Health Promotion / Epidemiology |
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| Research Abstract |
Physical exercise is expected to improve and maintain physical function in older people. In spite of such importance, there is only limited knowledge on the beneficial effects of physical exercise for older people. The purpose of the present study is to evaluate the efficacy of exercise training for older people by a method of randomized controlled trial.
Sixty-five eligible participants, aged 60 years and over, were randomly allocated to either exercise group or control group. The subjects in the exercise group were asked to attend training classes at the Sendai Silver Center, a municipal health and welfare, twice or three times a week for 25 weeks. Two-hour training class was consisted of endurance training, resistance training of major muscles, and so forth. The subjects in the control group were asked to attend recreational classes at the Center twice a month.
Significant improvement was indicated in such measures as maximum oxygen consumption (VO_2max), muscle strength, self-measure
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d blood pressure at home (HBP), physical activity at daily life, and motor performance. As compared with the control group, VO_2max in the exercise group increased by 2.1 ml/kg/min. This result is equivalent to the participants becoming younger in aerobic capacity by five years. Muscle strength of elbow flexor increased by 2.4 kg (16.6%). HBP in the exercise group decreased by 7.7 mmHg at systolic and by 3.4 mmHg at diastolic. This magnitude of decrease in HBP is comparable as the decrease in the risk of developing cerebrovascular diseases by 20%. Daily energy consumption by physical activity also increased in the exercise group by 2.0 kcal/kg (5%). VO_2max of the subjects at the exercise group was maintained or slightly increased at 6 months after the training session.
We would follow up the study subjects in order to examine the long-term effect of exercise training. We also would further the studies to develop exercise programs to enhance habitual physical activities among older people at home or community at a feasible level of professional involvement. Less
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