Association between the PPARGC1A Polymorphism and Aerobic Capacity in Japanese Middle-aged Men

作者：Nishida Yuichiro^*; Iyadomi Minako; Higaki Yasuki; Tanaka Hiroaki; Kondo Yoshiaki; Otsubo Hiromi; Horita Mikako; Hara Megumi; Tanaka Keitaro

来源：Internal Medicine, 2015, 54(4): 359-366.

DOI：10.2169/internalmedicine.54.3170

• aerobic capacity
• anaerobic threshold
• gene polymorphism

Objective A lower frequency for the peroxisome proliferator-activated receptor gamma coactivator 1 alpha (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.
Methods The PPARGC1A Gly482Ser polymorphism was identified according to a TaqMan (R) 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).
Results A significant association was observed between the PPARGC1A Gly482Ser polymorphism and LT, as carriers of the Ser482 had higher LT values than the Gly482 carriers.
Conclusion The current results suggest that the PPARGC1A Ser482 allele is associated with a higher aerobic capacity in Japanese middle-aged men.

• 出版日期2015