An experimental study on the effects of different strength training methods on smash performance and scoring in adolescent badminton players

This study examined the effects of ballistic training (BT), blood flow restriction training (BFRT), and traditional resistance training (TRT) on the smash performance of adolescent badminton players. Thirty athletes were randomly assigned to BT, BFRT, or TRT groups and completed 12 training sessions over four weeks. Heart rate (HR) was continuously monitored to adjust intensity and rest intervals. After the intervention, data were analyzed using two-way mixed-design ANOVA. Smash speed significantly improved across all groups (F(1,27) = 22.34, p < 0.05, η²ₚ = 0.66), with a significant time by group interaction (F(2,27) = 6.71, p = 0.004, η²ₚ = 0.33). In the BFRT group, smash speed increased from 166.8 ± 9.7 to 202.0 ± 11.3 km·h⁻¹. Smash accuracy improved slightly without significant group differences (F(2,27) = 4.23, p = 0.026, η²ₚ = 0.24). Exercise heart rate and recovery showed significant time and time by group effects (Ex HR: F(2,27) = 7.08, p = 0.003; HRR: F(2,27) = 5.42, p = 0.010), while resting HR remained stable. In conclusion, both BT and BFRT increase smash speed in adolescent badminton players, suggesting that combining these methods can improve performance and training efficiency.