The effects of electrical muscle stimulation training and basketball practice on muscle strength and jumping ability


electrical muscle stimulation sessions enhanced strength and squat jump performance of basketball players

The aim of this study was to investigate the influence of a 4-week electrical muscle stimulation training program on the strength of the knee extensors and the vertical jump performance of 10 basketball players. Electrical muscle stimulation sessions were carried out 3 times weekly; each session consisted of 48 contractions. Testing was carried out before and after the electrical muscle stimulation training program (week 4) and once more after 4 weeks of normal basketball training (week 8). At week 4, isokinetic strength increased significantly (p < 0.05) at eccentric and high concentric velocities (between 180 and 360 x s(-1)); this was not the case for low concentric velocities (60 and 120 degrees x s(-1)). Electrical muscle stimulation training increased also isometric strength at the two angles adjacent to the training angle (p < 0.01). Squat jump increased significantly by 14% at week 4 (p < 0.01), whereas counter movement-jump showed no change. At week 8, gains in isokinetic, isometric strength and squat-jump performance were maintained and the counter movement jump performance increased significantly by 17% (p<0.01). Electrical muscle stimulation as part of a short strength-training program enhanced knee extensor strength and squat jump performance of basketball players.


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