Association between the <i>PPARGC1A</i> Polymorphism and Aerobic Capacity in Japanese Middle-aged Men
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- Nishida Yuichiro
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Japan
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- Iyadomi Minako
- SUMCO Corporation, Japan
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- Higaki Yasuki
- Laboratory of Exercise Physiology, Faculty of Health and Sports Science, Fukuoka University, Japan
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- Tanaka Hiroaki
- Laboratory of Exercise Physiology, Faculty of Health and Sports Science, Fukuoka University, Japan
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- Kondo Yoshiaki
- Department of Health and Nutrition Science, Faculty of Health and Social Welfare Science, Nishikyushu University, Japan
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- Otsubo Hiromi
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Japan
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- Horita Mikako
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Japan
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- Hara Megumi
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Japan
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- Tanaka Keitaro
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Japan
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抄録
Objective A lower frequency for the peroxisome proliferator-activated receptor γ coactivator 1α (PPARGC1A) Ser482 allele has been reported in elite-level endurance athletes among Caucasians, although this gene polymorphism has not been found to be associated with aerobic capacity in German, Dutch or Chinese populations. The purpose of the current study was to examine the associations between the Gly482Ser polymorphism and aerobic fitness in 112 Japanese middle-aged men.<br> Methods The PPARGC1AGly482Ser polymorphism was identified according to a TaqMan® SNP genotyping assay. Habitual physical activity was objectively measured using an accelerometer. The lactate threshold (LT), an index of aerobic fitness, was measured based on a submaximal graded exercise test performed on an electric cycle ergometer. The association between the LT and the Gly482Ser polymorphism was assessed according to a multiple regression analysis and analysis of covariance, with adjustment for potential confounders (age, body mass index, cigarette smoking, physical activity level and regular exercise).<br> Results A significant association was observed between the PPARGC1AGly482Ser polymorphism and LT, as carriers of the Ser482 had higher LT values than the Gly482 carriers.<br> Conclusion The current results suggest that the PPARGC1ASer482 allele is associated with a higher aerobic capacity in Japanese middle-aged men.<br>
収録刊行物
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- Internal Medicine
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Internal Medicine 54 (4), 359-366, 2015
一般社団法人 日本内科学会