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Article dans une revue

Training Effects of Alternated and Pulsed Currents on the Quadriceps Muscles of Athletes

Abstract : The aim of the study was to evaluate the effects of 6 weeks training with different neuromuscular electrical stimulation (NMES) currents (medium alternated and low-frequency pulsed current) on muscle architecture and neuromuscular performance of competitive athletes. A double-blind controlled and randomized experimental study was carried out with 33 athletes (22.2 +/- 2.6 yrs, 74.7 +/- 9.8kg, 176.8 +/- 6.0cm), divided into 3 groups: mid-frequency current (MF, n=12), pulsed current (PC, n=11) and the control group (CG, n=10). Quadriceps maximal voluntary peak torque (PT) and corresponding vastus lateralis electromyographic activity, evoked torque (PT-NMES), vastus lateralis muscle thickness, fascicle length, pennation angle, and level of discomfort were assessed before and after the interventions. NMES training was performed 3 times per week and consisted of 18 sessions, 15min/session, 6s duration in each contraction interspersed with 18s rest. After the training period, muscle thickness increased in the MF and PC groups (p<0.05). PT-NMES increased only in the PC group (p<0.05). All currents produced similar levels of discomfort (p>0.05). Quadriceps NMES training applied through alternated or pulsed currents produced similar effects in architecture and neuromuscular performance in competitive athletes.
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https://hal-univ-bourgogne.archives-ouvertes.fr/hal-01873621
Contributeur : Caps - Université de Bourgogne <>
Soumis le : jeudi 13 septembre 2018 - 14:46:50
Dernière modification le : mardi 3 mars 2020 - 14:30:03

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Pedro Oliveira, Karenina Modesto, Martim Bottaro, Nicolas Babault, João Durigan. Training Effects of Alternated and Pulsed Currents on the Quadriceps Muscles of Athletes. International Journal of Sports Medicine, Thieme Publishing, 2018, 39 (07), pp.535 - 540. ⟨10.1055/a-0601-6742⟩. ⟨hal-01873621⟩

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