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 se...

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Bibliographic Details
Published in:Motriz : Revista de Educação Física. Unesp 2016-03, Vol.22 (1), p.35-41
Main Authors: Martins-Costa, Hugo Cesar, Diniz, Rodrigo Cesar Ribeiro, Lima, Fernando Vitor, Machado, Sandra Carvalho, Almeida, Rafael Silva Valle de, Andrade, André Gustavo Pereira de, Chagas, Mauro Heleno
Format: Article
Language:English
Subjects:
electromyography
lactate
resistance training
SPORT SCIENCES
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Summary: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.
ISSN:1980-6574
1980-6574
DOI:10.1590/S1980-65742016000100005