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J Exerc Nutrition Biochem. 2015 Jun;19(2):49-53. doi: 10.5717/jenb.2015.15052701. Epub 2015 Jun 30.

The COL5A1 genotype is associated with range of motion.

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College of Sport Science, Dong-A University, Busan, Republic of Korea.
Department of Physical Education, Dongduk Women's University, Seoul, Republic of Korea.
Korea Institute of Sports Science (KISS), Seoul, Republic of Korea.



The aim of our study was to investigate the association between COL5A1 genotype and Range of Motion as measured by the passive straight leg raise (SLR) and whole body join laxity (WBJL) in Asian population.


One hundred and seventy seven participants including Korean and Japanese college students (male = 109, female = 68) participated in the study. Each subject performed the passive straight leg raise and whole body join laxity test. Genotyping for the COL5A1 (rs 12722) polymorphism was performed using the TaqMan approach. The COL5A1 genotype exhibited a Hardy-Weinberg equilibrium distribution in our population.


The physical parameters including height, weight, and BMI were higher in < 90° group than > 90° group. The SLR exhibited significant difference among the COL5A1 group. However, the WBJL did not differ significantly among the COL5A1 genotype, but significant difference was seen in CC genotype when compared to CT (2.99 ± 1.72) or TT (2.70 ± 1.52) genotype.


We concluded that COL5A1 gene polymorphism is associated with increased SLR ROM in Asian population.


COL5A1; ROM; SLR; flexibility; genotype

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