Effects Of Drop-Set Training on High-velocity Lower Extremity Contraction

Abstract

Introduction: The ability of the lower limbs to undergo high-velocity contractions significantly impacts the capacity of athletes. However, not much is known about the effect of drop-set training (DST) on muscle contraction velocity. This study aimed to examine the impact of rapid drop set resistance training on high-velocity lower extremity contractions. Methods: Sixteen teenagers were assigned to either traditional resistance training (TRT) or DST groups. The TRT group performed squats at 1.8 times their body weight, while the DST group performed squats at 1.8 then 1.3 times their body weight. Before and after training, knee muscle strength and body composition were measured using an isokinetic dynamometer and bioelectrical impedance tester. Results: There were significant increases in fat-free mass, peak torque at 180°/s, and peak work in the right leg of the DST group. Peak torque, peak work, and average power increased significantly post-intervention butdid not differ significantly between the two groups. Conclusion: Compared to constant resistance training, 1.8- and 1.3-times body weight drop training is more effective than constant resistance training in boosting muscle mass and strength during rapid contractions of the lower extremities. Furthermore, both TRT and DST effectively improve lower-extremity muscle strength at lower-speed contractions.