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Revista Brasileira de Medicina do Esporte

versão impressa ISSN 1517-8692versão On-line ISSN 1806-9940


MOURA, João Augusto Reis de; BORHER, Tiago; PRESTES, Maximiliano Terra  e  ZINN, João Luiz. The influence of different joint angles obtained in the starting position of leg press exercise and at the end of the frontal pull exercise on the values of 1RM. Rev Bras Med Esporte [online]. 2004, vol.10, n.4, pp.269-274. ISSN 1806-9940.

The Maximum Repetition test (1RM) has been applied under various circumstances and with diverse objectives, and variables that might potentially influence this test have been constantly studied. This study sought to evaluate the influence of different angles in the initial position of the leg press exercises and in the final position of the frontal pull exercise on the results of the 1RM. Twenty male volunteers (with an average age of 24.5 years, height of 1.75 meters and weight of 72 kg) were measured in the 1RM test for the leg press exercise and the frontal pull exercise. After obtaining their consent to participate in and adapting to the weight-resistance training, the 1RM test was applied in the leg press exercise in three different test angles in the initial position (80º, 90º and 100º degrees of knee flexion) and in the final position of the frontal pull exercise (60º, 70º and 80º degrees of elbow flexion), thus each angle was tested on three different days for each of the exercises. The results indicate that the averages of the 1RM for the leg press exercises are statistically different (F = 30, 199; p = 0.000) amongst themselves (post hoc of Tukey). Although there were differences in the frontal pull exercise, they were not statistically significant (F = 1.330; p = 0.281). It can be concluded that different techniques used in the execution of exercises that involve different angles, mainly in their initial positions, must be rigorously controlled, since they can affect the amount of weight lifted.

Palavras-chave : Joint angles; 1RM; Techniques of execution.

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