Acta Biomedica Brasiliensia

1 - 10

Authors: Ramon Martins Alves1; Roberta Sobreira; Joelen Soares de Castro; Paulo Vinícios Zovico; Wilkes de Oliveira & Victor Magalhães Curty

The heavy resistance strength training causes damage to the muscle structure that can be detected through indirect markers. OBJECTIVE. Examine whether there are changes in creatine kinase (CK), aspartate transaminase (AST) and alanine transaminase (ALT) activity with the resistance strength training in different intervals between sets and exercises. METHODS. Thirteen volunteers (± 21,8 years; ± 173,6 cm; ± 68,3 Kg) performed the one repetition maximum test (1RM) in the exercises: bench press, driven (pulley), sitting development, tríceps (pulley) and biceps. After seven days all were submitted a blood sample (PRE) and they performed 4 maximum sets by concentric failure with intensity the 85% of 1RM and intervals 1 and 3 minutes between sets and exercises. All returned to the same place 24, 48 and 72 hours after the after the session to another blood sample. Repeating the procedures after one week, but the volunteers who performed the test with an interval of 1 minute next week, they would keep the intervals of 3 minutes and vice versa. ANOVA was performed keeping as significant p<0,05. RESULTS. Was a significant reduction the number of repetitions in each set of all exercises with 1 and 3 minutes apart. There was a significant increase activity of serum CK and AST 24, 48 and 72 hours using both ranges. ALT did not change. CONCLUSION. The heavy resistance strength training caused increased activity of CK and AST but no differences with the intervals used. However, short intervals reduce the total volume of repeats.