Acurácia de repetições em reserva em intensidade baixa em homens treinados

Abstract

The present study aimed to assess the accuracy of repetitions in reserve (RIR) estimation in trained men during resistance exercises at low intensity (50% of 1RM). The sample consisted of 15 male strength training practitioners with a minimum of two years of experience. Participants underwent 1RM testing, bar velocity measurement, and RIR prediction testing using the Smith machine bench press exercise. Subjective perception of effort (PSE), total repetitions, and the difference between predicted and actual RIR were analyzed. The results revealed a significant difference between the first set and subsequent sets in total repetitions and RIR accuracy, while no significant differences were found in PSE or absolute RIR estimates. It was concluded that familiarization with the load throughout the sets improves the accuracy of RIR estimation, even at moderate intensities, enhancing effort control among experienced practitioners.