Predicting Performance in Badminton based on BDNF Val66Met Gene Polymorphism among Badminton Players

Abstract

Badminton performance in competition is affected by many things, including motivation, training load, and the environment. Studies from the past show that intrinsic factors, such as genetics, play an important role in determining a person’s natural ability in physical performance. BDNF gene polymorphism indicates potential in predicting an individual’s athletic performance. This study investigates whether BDNF Val66Met gene polymorphisms can be used as a predictor of badminton players’ performance. This is a descriptive and retrospective cross-sectional study. Gene samples of BDNF Val66Met were collected through buccal swab genes from well-trained male badminton players. Descriptive data on the athletes’ training and injury history in the past year were obtained to analyse their injury rate and severity. Information on the physical performance test includes back and leg strength test, handgrip, vertical jump, standing long jump, and 40-meter sprint, as well as simple and choice reaction test. Data was analysed using Spearman and Pearson correlation, multinomial logistic regression, Chi-Square, and one-way ANOVA. 101 volunteers were selected and completed all the assessments in the study. A positive correlation coefficient with simple reaction time, r = 0.230, p < 0.05, and choice reaction time, r = 0.223, p < 0.05. Furthermore, multinominal regression indicates that the ValVal allele carrier will have a faster simple reaction time (b = -0.072, p = 0.002, p < 0.05) and choice reaction time (b = -0.018, p = 0.018, p < 0.05) as compared to MetMet allele. This study’s findings also indicate a positive correlation with no recurring injury (r = 0.293, p = 0.03) and no chronic injury (r = 0.221, p = 0.026). The genetic factor BDNF Val66Met gene polymorphism have a beneficial impact on certain performance metrics such as simple and choice reaction time, long jump, and vertical jump. In addition, results indicate a significant relationship with a history of injuries. These findings may be useful among badminton communities in incorporating genetic factors as performance-enhancing strategies for athletes’ training and selection processes.