Reliability and Physiological Analysis of an Isometric Test of Localized Muscular Fatigue

Introduction: The isokinetic dynamometer, considered a gold standard tool for physical evaluation, is widely used in studies that aim to evaluate the reliability and reproducibility of localized muscular endurance (LME) tests. However, such tests may not represent full LME by fixing time or number of replicates. Therefore, it is relevant to construct a test that respects the actual capacity of each subject to withstand fatigue and to submit such a test to validation, as well as to physiological analysis. Research objectives: To assess the inter- and intra-rater reliability of a localized isometric endurance test (IET) on the isokinetic dynamometer and to establish the metabolic demand required during the test. Design: Reliability study with test-reteste dynamic. Participants and Setting: After fulfilling the eligibility criteria, eighty-eight male participants will participate in the study. Procedure: In phase 1 forty-eight participants will submitted to reliability of the IET within three sessions: familiarization session, test session and retest sessio. In phase 2 forty participants will be submitted the metabolic demand required during the IET will be analyzed by means of gas analysis, blood lactat concetrate and muscular activation percentage. Intervention: isometric endurance teste. Measurements: The measurements include time of execution of test, work of test, physiological and psychological outcomes.