Key result
The Gly/Gly genotype of the PPARGC1A Gly482Ser polymorphism was significantly associated with both endurance (OR 1.26) and power (OR 1.30) athletic performance in Caucasian populations.
Why the study?
Previous studies investigating the association between the PPARGC1A Gly482Ser polymorphism and athletic performance in humans reported contradictory results.
Is the PPARGC1A Gly482Ser polymorphism associated with improved endurance or power athletic performance?
Meta-Analysis (n=9,936)
Is the PPARGC1A Gly482Ser polymorphism associated with improved endurance or power athletic performance?
Odds Ratio: 1.26 (95% CI 1.11–1.42)
The Gly/Gly genotype and the Gly allele of the PPARGC1A Gly482Ser polymorphism are associated with enhanced athletic performance regardless of the type of sport.
Peroxisome proliferator-activated receptor coactivator 1 (PGC1) encoded by the PPARGC1A gene is a vital regulator of glucose and fatty acid oxidation, mitochondrial biogenesis, and skeletal muscle fibre conversion. Several studies have investigated the association between PPARGC1A Gly482Ser polymorphism and athletic performance in humans. However, the results were contradictory. In the present study, two metaanalyses were performed to assess the association between the Gly482Ser polymorphism and endurance or power athletic performance to resolve this inconsistency. Ten articles were identified, including a total of 3,708 athletes and 6,228 controls. Higher frequencies of the Gly/Gly genotype (OR, 1.26; 95% CI, 1.11-1.42) and the Gly allele (OR, 1.29; 95% CI, 1.09-1.52) were observed in Caucasian endurance athletes. Furthermore, higher incidences of the Gly/Gly genotype (OR, 1.30; 95% CI, 1.16-1.46) and the Gly allele (OR, 1.22; 95% CI, 1.12-1.33) were observed in power athletes compared to controls. This finding demonstrates that the Gly/Gly genotype and the Gly allele of the PPARGC1A Gly482Ser polymorphism may facilitate athletic performance regardless of the type of sport, as well as providing solid evidence to support the possible influence of genetic factors on human athletic performance.
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Chen et al. (2019) conducted a meta-analysis in Athletic performance (n=9,936). PPARGC1A Gly482Ser polymorphism (Gly/Gly genotype) vs. Sedentary controls (Gly/Ser + Ser/Ser genotype) was evaluated on Endurance athletic performance in Caucasians (Gly/Gly genotype vs Gly/Ser + Ser/Ser) (OR 1.26, 95% CI 1.11-1.42). The Gly/Gly genotype of the PPARGC1A Gly482Ser polymorphism was significantly associated with both endurance (OR 1.26) and power (OR 1.30) athletic performance in Caucasian populations.
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