|
KMID : 0811720150190040341
|
|
Korean Journal of Physiology & Pharmacology
2015 Volume.19 No. 4 p.341 ~ p.347
|
|
|
Effect of Taekwondo Training on Physical Fitness and Growth Index According to IGF-1 Gene Polymorphism in Children
|
|
Lee Bong-han
Kim Ki-Jin
|
|
|
Abstract
|
|
|
|
This study analyzed the effect of regular Taekwondo training for 16 weeks on physical fitness and growth index depending on different IGF-1 gene polymorphisms. The subjects of the study were 44 male students who were 8 year years old. The IGF-1 gene showed the highest frequency of 18 CA repeat (190 bp) in 50% of subjects, and was found in the homozygote (n=11), heterozygote (n=22) and non-carriers (n=11). The results of the physical fitness and growth index among the gene polymorphism groups indicated no significant differences but the expected height of the non-carrier group was significantly high (p＜0.05). After Taekwondo training, the homozygote group and the non-carrier groups demonstrated significant (p＜0.05) increase in grip strength and in time in the standing with one leg while closing eyes test, respectively. Only the homozygote group had a significant (p＜0.05) increase in thigh circumference. IGF-1 concentration significantly (p＜0.05) increased in the heterozygote group, while HOMA-IR significantly (p＜0.05) decreased in the homozygote group. Furthermore, there was a significant (p＜0.05) decrease in glucose in both the homozygote and the non-carriers groups. The difference between physical fitness and growth index depending on the IGF-1 gene polymorphism after Taekwondo training did not show consistent impact.
|
|
|
KEYWORD
|
|
|
Elementary school students, Growth index, IGF-1 gene polymorphism, Physical fitness, Taekwondo training
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
  
|