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KMID : 0613820090190111644
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Journal of Life Science
2009 Volume.19 No. 11 p.1644 ~ p.1650
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Effects of 12-Week Walking Exercise on Health-related Factors, Growth Hormone, IGF-1 and Leptin in the Obese and the Normal Middle School Gir
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Kim Jong-Won
Yoon Byung-Kon
Kwak Yi-Sub
Kim Do-Yeon
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Abstract
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The purpose of this study was to investigate the effects of 12-week walking exercise on body composition, physical fitness, cardiovascular function, blood lipids, GH, IGF-1and leptin in obese and normal middle school girls. Participants included 12 pairs of middle school girls who were matched for sex, age and stratified by BMI (Obese Group: BMI≥25.0; Normal Group: BMI＜23.0). The variables of all factors were measured in all the subjects before and after the 12-week walking exercise program. The test data were analyzed by paired t-test, and t-test using the SPSS 14.0 statistics package and the alpha level of p＜0.05 was set for all tests of significance. Body composition showed a significant difference in both groups, but the variables of physical fitness, cardiovascular function, blood lipids, growth hormone, and leptin did not show a significant difference in the two groups. We conclude that regular and continuous walking exercise improved body composition, physical fitness, cardiovascular function, blood lipids, and insulin factors in both groups. Consequently, these findings suggest that walking exercise will be effective for preventing obesity and improving health-related factors in the middle school girls.
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KEYWORD
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GH, IGF-1, leptin, obese, walking exercise
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