12주간의 플라이오메트릭 트레이닝이 배드민턴 선수의 신체조성과 하지 근력 및 파워에 미치는 영향* = Effects of a 12-Week Plyometric Training Program on Body Composition and Lower Extremity Strength and Power in Badminton Players

다국어 초록 (Multilingual Abstract)

Purpose: This study aimed to examine how participation in a 12-week plyometric training intervention influences body composition, explosive power, and lower-limb isokinetic strength in male collegiate badminton players.
Methods: Fourteen male badminton players from a university team were randomly assigned to a plyometric training group (PG, n=7) or a control group (CG, n=7). The PG performed plyometric training three times per week for 60 minutes per session over 12 weeks, while the CG continued their regular badminton training. Body composition (BMI and fat-free mass), explosive power (vertical jump), and lower-limb isokinetic strength (knee extension and flexion peak torque and hamstring-to-quadriceps ratio) were measured before and after the intervention. A two-way repeated-measures ANOVA (group × time) was used for statistical analysis.
Results: As a result of this study, First, no significant group or group-by-time interaction effects were observed in body composition (p > .05). Second, explosive power, assessed by the vertical jump test, showed a significantly greater improvement in the plyometric training group compared with the control group (p < .001). In terms of isokinetic muscle strength, significant time and group-by-time interaction effects were found in the right knee extensors and flexors (p < .05); however, no significant changes were observed in the left limb or in the hamstring-to-quadriceps (H/Q) ratio.
Conclusion: A 12-week plyometric training program effectively improved explosive power and selected lower-limb strength variables in collegiate badminton players. However, its effects on body composition and muscle balance were limited. These findings suggest that plyometric training is beneficial for performance enhancement, but should be combined with additional training strategies to improve bilateral balance and muscle strength ratios.