Effect of Taekwondo Training on Physical Fitness and Growth Index According to IGF-1 Gene Polymorphism in Children
The Korean Journal of Physiology and Pharmacology
; : 341-347, 2015.
Article
in En
| WPRIM
| ID: wpr-727364
Responsible library:
WPRO
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.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Thigh
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Insulin-Like Growth Factor I
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Physical Fitness
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Hand Strength
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Glucose
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Heterozygote
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Homozygote
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Leg
Limits:
Child
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Humans
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Male
Language:
En
Journal:
The Korean Journal of Physiology and Pharmacology
Year:
2015
Type:
Article