RT info:eu-repo/semantics/article
T1 Comparison of the Musculoskeletal Effects of Different Iso-inertial Resistance Training Modalities: Flywheel vs. Electric-motor
T2 Comparación de los efectos musculoesqueléticos de diferentes modalidades de entrenamiento de resistencia isoinercial: Volante de inercia frente a motor eléctrico
A1 Maroto Izquierdo, Sergio
A1 Fernández Gonzalo, Rodrigo
A1 Hashish, Magdi Rashad
A1 Manzano Rodríguez, Saúl
A1 González Gallego, Javier
A1 Paz Fernández, José Antonio de
A2 Fisiologia
K1 Deporte
K1 Eccentric overload
K1 Strength
K1 Muscle power
K1 Hypertrophy
K1 Range of motion
K1 32 Ciencias Médicas
K1 2411.06 Fisiología del Ejercicio
K1 2411 Fisiología Humana
AB [EN] This study aimed to analyse whether increasing the eccentric overload (EO) during resistance training, in terms of range of motion and/or velocity using an electric-motor device, would induce different muscle adaptations than conventional flywheel-EO resistance training. Forty physically active university students (21.7 ± 3.4 years) were randomly placed into one of the three training groups (EX1, EX2, FW) and a control group without training (n = 10 per group). Participants in the training groups completed 12 sessions (4 sets of 7 repetitions) of iso-inertial single-leg squat training over 6 weeks for the dominant leg. Resistance was generated either by an electric-motor device at two different velocities for the eccentric phase; 100% (EX1) or 150% (EX2) of concentric speed, or by a conventional flywheel device (FW). Thigh lean tissue mass, unilateral leg press one-repetition maximum (1-RM), unilateral muscle power at different percentages of the 1-RM and bilateral/unilateral vertical jump were assessed before and after the 6-week training. There were significant (p < 0.05–0.001) main effects of time in the 3 training groups, indicating increased thigh lean tissue mass (2.5–5.8%), 1-RM load (22.4–30.2%), vertical jump performance (9.1–32.9%) and muscle power (8.8–21.7%), without differences across experimental groups. Participants in the control group did not improve any of the variables measured. In addition, EX2 showed greater gains in eccentric average peak power during training than EX1 and FW (p < 0.001). Despite the different EO offered, 6 weeks of resistance training using flywheel or electric-motor devices induced similar significant gains in muscle mass, strength, muscle power and vertical jump.
PB Taylor & Francis
SN 1746-1391
LK https://hdl.handle.net/10612/18084
UL https://hdl.handle.net/10612/18084
NO Maroto-Izquierdo, S., Fernandez-Gonzalo, R., Magdi, H. R., Manzano-Rodriguez, S., González-Gallego, J., & De Paz, José a. (2019). Comparison of the musculoskeletal effects of different iso-inertial resistance training modalities: Flywheel vs. electric-motor. European Journal of Sport Science, 19(9), 1184-1194. https://doi.org/10.1080/17461391.2019.1588920
DS BULERIA. Repositorio Institucional de la Universidad de León
RD Jul 12, 2024