The Effects of Electromyostimulation Training and Basketball Practice on Muscle Strength and Jumping Ability

Abstract

The aim of this study was to investigate the influence of a 4-week electromyostimulation training program on the strength of the knee extensors and the vertical jump performance of 10 basketball players. Electromyostimulation sessions were carried out 3 times weekly; each session consisted of 48 contractions. Testing was carried out before and after the electromyostimulation 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)). Electromyostimulation 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). Electromyostimulation as part of a short strength-training program enhanced knee extensor strength and squat jump performance of basketball players.

Eight days KAATSU-resistance training improved sprint but not jump performance in collegiate male track and field athletes

“…The moderate muscle hypertrophy and strength gains of the present study, however, were not sufficient to improve jumping performance. Studies that have demonstrated strength training induced improvements in jumping performance have reported much larger gains in muscle size and strength (Maffiuletti et al, 2000;Bruhn et al, 2004). It may be that longer KAATSU-training may cause larger muscle hypertrophy which might then be able to improve jumping performance.…”

Effects of Electrical Stimulation Parameters on Fatigue in Skeletal Muscle

“…26,27 During NMES application, the capacity to maintain performance is compromised compared to voluntary exercise, Experimental laboratory study.The primary purpose was to investigate the independent effects of current amplitude, pulse duration, and current frequency on muscle fatigue during neuromuscular electrical stimulation (NMES). A second purpose was to determine if the ratio of the evoked torque to the activated area could explain muscle fatigue.…”

The Effect of Burst-Duty-Cycle Parameters of Medium-Frequency Alternating Current on Maximum Electrically Induced Torque of the Quadriceps Femoris, Discomfort, and Tolerated Current Amplitude in Professional Soccer Players

“…J Orthop Sports Phys Ther 2013; 43(12) 56 Although there is still a lack of strong evidence on the advantages of NMES compared to voluntary exercise, 6,21 training programs for athletes that include NMES have been investigated. 2,11,19,31,39 In soccer players, a 5-week training program using NMES produced increases in knee extension torque and ball speed with kicking, showing an improvement in the specific tasks of soccer. 7 However, more investigations are needed to examine the optimal stimulation parameters appropriate for NMES strengthening protocols in athletes.…”

“…50 NMES has also been investigated for its potential role in helping to improve muscle performance in both healthy individuals and athletes. 21,31,39 In 1977, at a conference in Canada, the Russian scientist Yakov Kots reported on the use of a medium-frequency alternating current of 2500 Hz in Olympic athletes from the former Soviet Union and claimed that NMES could produce force gains of up to 40% in elite athletes compared to the use of exercises alone. These impressive strength gains were purportedly achieved by using NMES to elicit muscle contractions that were 10% to 30% greater than those achieved with a T T STUDY DESIGN: Repeated-measures, withinsubject crossover trial.…”