SUMMARY
Objective. The purpose of this study was to compare the knee extension torque in the maximum voluntary isometric contraction (MVIC) and in the one repetition maximum (1RM) tests considering equivalent angles.
Methods. Twenty-seven untrained women performed the MVIC and 1RM tests on the knee extension machine on two different days in a crossover design. MVIC test was performed at angles of 30°, 40°, 50°, 60°, 70°, 80°, and 90° of knee flexion (0° = full knee extension). After a 10-minute rest break after the MVIC tests, the 1RM test was performed using up to 6 attempts (range of motion = 100° to 30° of knee extension). In the attempt that corresponded to the 1RM value, the average of the torque values was calculated using one degree below and above the angles in which the MVIC tests were performed (89° to 91°; 79° to 81°; 69° to 71°; 59° to 61°; 49° to 51°; 39° to 41°; 30° to 31°). Statistical analysis was performed with Two-way ANOVA (Angle × test) with repeated measures using the Scott-Knott post-hoc.
Results. The MVIC test presented higher torque values than the 1RM test (p < 0.05). Additionally, the central angles presented higher torque values than the extremes in the MVIC test, but the torque values were not significantly different between angles in the 1RM test.
Conclusions. We conclude the MVIC test presents higher maximum torque values than the 1RM test during the knee extension movement.
Comparison of the Knee Extension Torque in the Maximum Voluntary Isometric Contraction and in the One Repetition Maximum Tests at Equivalent Angles
Maria C. N. Ferreira, Gustavo F. Pedrosa, Marcelo D. M. dos Santos, Bárbara T. R. de Souza, Marina O. C. Figueiredo, Fernando V. Lima, Mauro H. Chagas, Rodrigo C. R. Diniz
Original Article, 574-577
Keywords: Equivalent-angle, force-angle, knee extension strength, Strength test, torque-angle,
Table of Content: Vol. 13 (No.4) 2023 October/December
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