The effect of two type resistance exercise, concentric failure set and configuration cluster sets on bio markers of myocardium injury and left and right ventricles mechanical mechanism in athletic

The purpose of this study was to investigate the effect of resistance exercise with concentric failure sets and configuration cluster sets on response of cardiovascular, bio markers of cardiac injury,left and right ventricles mechanical mechanism of athletic myocardium and performance.

Cross-sectional analysis of clinical trials was performed. SPSS Simple Random Sampling using to selected 24 cases and with limited random block allocations 6 cases in 4 blocks. The concealment was done in two blinding form. Clinical trials are classified into one phase.

training protocol performing in Gym of University of Tehran Dormitory and the tests taking in Shahid Rajaee Heart Center, On the day of the exercise protocol performing, None of the subjects or tester have aware of which of the two protocols performing.

Inclusion criteria: athletes with a history of weight training in advanced level with absence of any disease, not taking any kind of exercise supplement Exclusion criteria: Training history less than 3 years, No regular weight training in the past 18 months, absence of clinical symptoms associated with cardiovascular disease and musculoskeletal disorders and diseases, not taking ergogenic supplements for at least 8 weeks before the test.

intervention 1 (INT1) : concentric failure sets with intensity zone 12-15 repetition maximum (RM) in 3 sets volume, INT2: same with INT1 but intensity (8-10 RM),INT3: configuration cluster sets with intensity (8-10 RM) in 9 sets volume with 2 to 3 reps, INT4: configuration cluster sets with intensity (12-15 RM) in 9 sets volume with 4 to 5 reps.

high sensitivity Cardiac Troponin I, N-terminal proBNP , right and left ventricular end systolic and diastolic volume and dimension.Right and left Ventricular Global Longitudinal Strain

24 male strength athletes were selected by simple random sampling using SPSS software and from data select cases.Each subject was given a four-digit numeric code (for example: 1248) through which the code number was identified. In order to allocate sequences and able to control the number of subjects in each group, a limited randomized block allocation method was used. 24 subjects were placed in 4 blocks with setting a block size of 6, By applying the factorial formula, 6 possible combination were identified. , to determine the block number assigning 6 cases per block,used spss software with from the path Transform / Compute Variable / BLOCK_NUM / RND ($ CASENUM / 4 + 0.49). $ CASENUM / 4 indicates the case number divided by 4. Then random allocation group numbers were applied to all 6 possible combination. Which was done through: Transform / Rank cases / RANDOM / BLOCK_NUM. The concealment allocation was done through sealed the number of coded. Both the subject and the test taker until the moment of implementation do not be aware of the sequence generation step.

On the day that the exercise protocol was performed, None of the subjects or tester were aware of which of the two protocols were performed.Before the intervention subjects were not aware of the which intensity and type of resistance exercise will be performed.The persons responsible for measuring and analyzing the dependent variables of the research did not know which intervention method was implemented.

Part of the main outcome data

Two years after the article was published

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