The Effect of Rhythm Jump Training on the Physical Fitness, Stress and Autonomic Nervous System Activity in Middle School Girls

Objectives The purpose of this study was to analyze the influence of 12-week rhythm jump training on physical fitness, stress and autonomic nervous system activity in middle school girls. Methods The subjects were 45 middle school girls were selected at random and the allocated 15 students each for the rhythm jump training group(RJG), jump training group(JG) and control group(CG) and measured physical fitness, stress and autonomic nervous system activity before and after rhythm jump training. The program of rhythm jump training is implemented for 45 minutes of 3 times each week for 12 weeks. The data obtained from this study were analyzed using the SPSS 20.0 statistical program and two-way repeated ANOVA was used. Results First, physical fitness variables showed an interaction effect on cardiovascular endurance and power, RJG significantly increased in all variables, and JG showed significant increases in cardiovascular endurance and flexibility. Second, the stress variable showed an interactive effect in all variables of cumulative stress index, physical stress, and psychological stress, RJG was significantly improved in all three variables, and JG was significantly improved in cumulative stress index and physical stress. Third, autonomic nervous system activity variables showed an interactive effect in SDNN and HRV index, and RJG significantly increased in HF, SDNN and HRV index, and JG significantly increased in SDNN. Conclusions Jump training had a partial positive effect on physical fitness, stress, and autonomic nervous system activity in middle school girls, and it was confirmed that the effect was greater in the case of rhythm jump training to which rhythm was applied.