Affiliations: [a] Exercise Physiology Research Laboratory, Estácio
de Sá University, Graduate School of Physical Education, Campus
Rebouças, Rio de Janeiro, Brazil | [b] Biomedical Engineering Program (PEB)/Graduate School
in Engineering, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Note: [] Address for correspondence: Prof. Wollner Materko, Exercise
Physiology Research Laboratory, Estácio de Sá University, Rua
Cândido Mendes 140 – 805, Glória, Rio de Janeiro, RJ, Brazil CEP:
20241-220. Tel.: +55 (21) 37986918; E-mail: wollner.materko@gmail.com
Abstract: The goal of the present study was to determine and validate a model
for predicting one maximum repetition (1RM) based on a submaximal strength test
and the arm circumference for bench press (BP). Thirty-five male experienced in
strength training underwent an anthropometric evaluation, followed by an 1RM
and a 10RM test for BP. The 1RM workload was modeled through the 10RM test and
the arm circumference using multiple linear regression. The model resulted in
86% of explained variance and a 6.0% standard error of estimate of the
measured 1RM for BP. The measured 1RM was 121.3 ± 18.8 kg
and predicted 1RM was 120.6 ± 17.2 kg, with 0.6 ± 7.4 kg (p< 0.01)
difference between obtained and predicted 1RM. The obtained model showed an acceptable
reliability, and further can be currently used as a tool for predicting the 1RM workload.
