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The aim of this study is to examine the hypothesis that different weight loads ( 1 repetition maximum ( RM), 80% RM, and 50% RM) lifted until exhaustion could impose distinct oxidative insults and elicit diverse antioxidant responses in plasma of young trained subjects. The balance between the production of oxyradicals and antioxidant responses during anaerobic-like exercises is essential to assure adaptation to the physiological benefits of strength training and to prevent chronic harmful effects. J Strength Cond Res 31(9): 2489-2497, 2017-For decades, scientists have examined the participation of oxygen/nitrogen species in anaerobic-like exercises, especially weightlifting and resistance exercises. Effect of 1 RM, 80% RM, and 50% RM strength exercise in trained individuals on variations in plasma redox biomarkers. Polotow, TG, Souza-Junior, TP, Sampaio, RC, Okuyama, AR, Ganini, D, Vardaris, CV, Alves, RC, McAnulty, SR, and Barros, MP. Polotow, Tatiana G Souza-Junior, Tácito P Sampaio, Ricardo C Okuyama, Alexandre R Ganini, Douglas Vardaris, Cristina V Alves, Ragami C McAnulty, Steven R Barros, Marcelo P When attempting to estimate the XRM-MV relationship, one must use individualized relationships to objectively estimate the exact number of repetitions that can be performed in a training set.Įffect of 1 Repetition Maximum, 80% Repetition Maximum, and 50% Repetition Maximum Strength Exercise in Trained Individuals on Variations in Plasma Redox Biomarkers.

These results indicate that generalized group equations are not acceptable methods for estimating the XRM-MV relationship or the number of repetitions in reserve. However, a strong relationship (median r 2  = .984) and acceptable reliability (CV  .85) were observed between the fastest MV of the set and the XRM when considering individual data. Both the general equation to predict the XRM from the fastest MV of the set (CV = 15.8-18.5%) and the general equation to predict MV associated with a given number of repetitions in reserve (CV = 14.6-28.8%) failed to provide data with acceptable between-subjects variability. All repetitions were performed at the maximum intended velocity. The different loads were tested in a randomized order with 10 min of rest between them. To provide 2 general equations to estimate the maximum possible number of repetitions (XRM) from the mean velocity (MV) of the barbell and the MV associated with a given number of repetitions in reserve, as well as to determine the between-sessions reliability of the MV associated with each XRM. García-Ramos, Amador Torrejón, Alejandro Feriche, Belén Morales-Artacho, Antonio J Pérez-Castilla, Alejandro Padial, Paulino Haff, Guy Gregory Prediction of the Maximum Number of Repetitions and Repetitions in Reserve From Barbell Velocity.