Abstract

Introduction. The study of anthropometric and genetic variables are essential as determinants of sports performance. Objective. Theobjective of the study was to determine the somatotype and the frequency of genotype and allele of 5Ø6ß-actinin 3 (ACTN3) R577X andangiotensin converting enzyme (RCT) I / D polymorphism of Chilean table tennis players. Method. 24 male table tennis players (age 22.1 x5.4) of Chile’s national rankings were studied. Obtaining ACTN3 and ACE was collected by sample of saliva and analyzed by polymerase chainin real time. The body structure was characterized through the somatotype method proposed by Carter. From descriptive statistics, the meanvalues of somatotype, frequency of classification and location of somato letter were analyzed, in addition, of genotype frequency values andallele of ACTN3 R/X and ECA I/D polymorphism according to number of occurrence and percentage. Results. It demonstrated a predominanceof mesoendomorphy and endomorphy classification, a higher phenotypic frequency XX with predominance of allele X for the ACTN3 geneand higher frequency of DI allele with predomina D for ACE. Conclusion. The somatotype of Chilean tenimestists has an orientation towardsmesoendomorphy and a predominance of the genotype XX and allele X of the ACTN3 gene and, predominance of the DI genotype and alleleD of the ACE gene, these characteristics could offer a genetic advantage in terms of strength levels and muscle potency, possibly facilitatingpractice and competitive success in these Chilean tenimists