Longer repetition duration increases muscle activation and blood lactate response in matched resistance training protocols

Abstract

–This study analyzed the effect of different repetition durations on electromyographic and blood lactate responses of the bench press exercise. Fifteen recreationally trained male volunteers completed two training protocols, matched for intensity (% one-repetition maximum; 1RM), number of sets, number of repetitions, and rest intervals. One of the protocols was performed with a repetition duration of 4 s (2 s concentric: 2 s eccentric; 2:2 protocol), whereas the second protocol had a repetition duration of 6 s (2 s concentric: 4 s eccentric; 2:4 protocol). The results showed higher normalized integrated electromyography (pectoralis major and triceps brachii) for the 2:4 protocol. Blood lactate concentration was also higher in the 2:4 protocol across all sets. These results show that adding 2 s to the eccentric action in matched training protocols increases muscle activation and blood lactate response, which reinforces the notion that increasing repetition duration is an alternative load progression in resistance training.

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Cite this paper

@inproceedings{MartinsCosta2016LongerRD, title={Longer repetition duration increases muscle activation and blood lactate response in matched resistance training protocols}, author={Hugo Cesar Martins-Costa and Rodrigo C{\'e}sar Ribeiro Diniz and Fernando V. Lima and Sandra Machado and Rafael Silva Valle de Almeida and Andre Gustavo Pereira de Andrade and Mauro Heleno Chagas}, year={2016} }