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Validade das equações preditivas de uma repetição máxima varia de acordo com o exercício realizado em adultos jovens treinados [Validity of one repetition maximum predictive equations vary according to the exercise performed in trained young adults]
Journal article   Peer reviewed

Validade das equações preditivas de uma repetição máxima varia de acordo com o exercício realizado em adultos jovens treinados [Validity of one repetition maximum predictive equations vary according to the exercise performed in trained young adults]

Annelise L Meneses, Fabio da Silva Santana, Antonio Henrique Germano Soares, Bruna Cadengue Coelho de Souza, Diogo Jose Cavalcanti de Azevedo Souza, Marcos Andre Moura dos Santos, Edilson Serpeloni Cyrino and Raphael Mendes Ritti-Dias
Revista Brasileira de Atividade Fisica & Saude, Vol.18(1), pp.95-104
2013
DOI: https://doi.org/10.12820/2317-1634.2013v18n1p95
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https://doi.org/10.12820/2317-1634.2013v18n1p95View
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Abstract

Human Movement and Sports Science exercise muscle strength athletic performance resistance training.
The aim of this study was to verify the validity of predictive equations for the estimation of one repetition maximum (RM) in different exercises, in young adults with weight training (WT) experience. Sixteen men (21.4±4.0 years), WT practitioners, conducted 1-RM and 8-12 RM tests for leg press45°, bench press, unilateral knee extension, central rowing, knee flexion and frontal raises. Six predictive equations were used for prediction of 1-RM values: Adams; Baechle & Groves; Brzycki; Epley; Lander; O'Connor et al. All the analyzed equations overestimated the leg press 45º 1-RM values (6 to 15%, p less than 0.05). In the bench press and front raises, O'Connor et al. and Adams equations were, respectively, the ones that produced the best estimation of 1-RM. Although all analyzed equations have provided valid estimation for the unilateral knee extension exercise, the O'Connor et al. equation showed the best performance among them. In the central rowing exercise, the Brzycki, Epley and Lander equations were considered valid, with the first two featuring lower estimation error and better agreement. Finally, in the knee flexion exercise, Baechle & Groves equation showed the best performance, although the Brzycki, Epley and Lander equations have also been valid for 1-RM estimation. The results suggest that the validity of 1-RM predictive equations is exercise-dependent and it is required the development of predictive equations for estimating the 1-RM values for the leg press 45º.

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