International Journal of Human Movement and Sports Sciences Vol. 11(4), pp. 908 - 913
DOI: 10.13189/saj.2023.110427
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Association of ACTN3 R577X Genotype with Physical Fitness in Japanese Male College Students

Kazuhiro Matsui ^1,*, Toshiyuki Kawamura ², Akihiro Azuma ¹, Christian Wisdom M. Valleser ³, Francis Carlos B. Diaz ^3
1 Course of General Education, National Institute of Technology, Fukui College, Japan
² Department of Chemistry and Biology, National Institute of Technology, Fukui College, Japan
³ College of Human Kinetics, University of the Philippines Diliman, Philippines

ABSTRACT

This study examined the association between the Japanese physical fitness test (field test) and ACTN3 genotypes in non-athlete male college students. Subjects were 123 healthy college male students (18.46 ± 0.61 years). DNAs were extracted by their biological samples, and genotypes (RR, RX, and XX types) of the ACTN3 gene were analyzed. The RR and the RX type were categorized as one group (R-allele group), and then there was a comparison of the physical fitness test items between the R-allele and the XX group. Eight physical fitness tests, standardized and applied to Japanese, were used to evaluate muscle strength, muscular endurance, flexibility, agility, aerobic endurance, and power. The genotypes of the subjects in this study were 23 for RR type, 61 for RX type, and 39 for XX type, respectively, and 84 subjects (RR type + RX type) were grouped as the R-allele group. The results showed significant differences in the 50-m run and the standing long jump between groups, which are considered sprint/power-related items (both P < 0.05), but not in the other items. Hence, the sprint/power-related physical fitness tests in the R-allele group were superior to those in the XX group. Moreover, the specificity of ACTN3 for sprint/power athletes, as observed in the laboratory tests, was also observed in the field tests for the Japanese general male college students. Physical fitness tests may be helpful to superiority in ACTN3-related aspects of physical activity for them.

KEYWORDS
ACTN3, Genotype, Physical Fitness Test, Field Test

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Kazuhiro Matsui , Toshiyuki Kawamura , Akihiro Azuma , Christian Wisdom M. Valleser , Francis Carlos B. Diaz , "Association of ACTN3 R577X Genotype with Physical Fitness in Japanese Male College Students," International Journal of Human Movement and Sports Sciences, Vol. 11, No. 4, pp. 908 - 913, 2023. DOI: 10.13189/saj.2023.110427.

(b). APA Format:
Kazuhiro Matsui , Toshiyuki Kawamura , Akihiro Azuma , Christian Wisdom M. Valleser , Francis Carlos B. Diaz (2023). Association of ACTN3 R577X Genotype with Physical Fitness in Japanese Male College Students. International Journal of Human Movement and Sports Sciences, 11(4), 908 - 913. DOI: 10.13189/saj.2023.110427.