KMID : 0829220140380060365
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Korean Journal of Oral and Maxillofacial Pathology 2014 Volume.38 No. 6 p.365 ~ p.372
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The Effects of 16 Weeks of Taekwondo Program on Growth Hormone and Bone Mineral Density in Obese Elementary Students
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Yang IL-Gu
Lee Suk-Jun Park Woo-Young
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Abstract
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The objective of this research was to investigate the effect of Taekwondo training for 16 weeks on obese elementary school students¡¯growth hormone and bone mineral density(BMD). The study was conducted on male obese elementary school students who residein D metropolitan city and have body mass index (BMI) higher than 25%. The whole subject group had no particular diseases anddid not regularly exercise more than twice a week. Based on basal movement, low section, Taekwondo gym and form pattern, theTaekwondo train program was composed of total 16 weeks; 4 weeks of introductory phase, 4 weeks of maintenance phase and 4weeks of improvement phase one and two, respectively. BMD was analyzed using Dual-energy X-ray absorptiometry standard protocol.
As a result, growth hormone was not significantly difference in group and exericse effects. In BMD, there was a significant differencebetween the two groups in BMD lumber spine(LS). In BMD-femur, there was a significant difference in the group (p<0.01) and time(p<0.05). In body composition, there was no statistically significant difference between body mass, body mass index, body fat massand muscle volume. In conclusion, since 16 weeks of Taekwondo training had a positive effect on elementary students¡¯ metabolicsyndrome index, BMD and postural balance. We can deduce that elementary students need constant physical activity for their growth,physical development and physical health.
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KEYWORD
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Taekwondo program, Growth hormone, Bone mineral density
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