Effects of whole-body vibration applied to lower extremity muscles during decline bench press exercise
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Date
01/09/2016Estado
info:eu-repo/semantics/publishedVersionMetadata
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Efectos del estímulo vibratorio de cuerpo completo aplicados sobre la musculatura de las extremidades inferiores durante un ejercicio de press banca declinado Objectives: To evaluate the effects of whole-body vibration (WBV) on skeletal muscle activity and power performance of
the upper body during decline bench press exercise at different loads. Methods: Forty-seven healthy young and active male
students volunteered. Each performed dynamic decline bench press repetitions with and without WBV (50 Hz, 2.2 mm)
applied through a hamstring bridge exercise at three different loads of their 1-repetition maximum (1RM): 30%, 50%,
and 70% 1RM. Muscle activity of the triceps brachii (TB), biceps brachii (BB), pectoralis major (PM), and biceps femoris
(BF) was measured with surface electromyography electrodes and kinetic parameters of the repetitions were measured
with a rotary encoder. Results: WBV increased peak power (PP) output during the 70% 1RM condition (p<0.01). Muscle
activity was increased with WBV in the TB and BF muscles at all loads (p<0.05). There were no effects of WBV on BB or
PM muscles. Conclusion: WBV applied through a hamstring bridge exercise increases TB muscle activity during a decline
bench press and this augmentation contributes to an increased peak power at higher loads and increased peak acceleration
at lower loads.
Effects of whole-body vibration applied to lower extremity muscles during decline bench press exercise
Tipo de Actividad
Artículos en revistasISSN
1108-7161Palabras Clave
Vibración, ejercicios, cinemática, aceleración, actividad muscularVibration Exercise, Kinematics, Power, Acceleration, Muscle Activity