IRCT2017071732873N4 IRCT 2017-07-28 Tabriz Islamic Azad University The effect of training and detraining on the left ventricle of male athletes The effect of 8 weeks resistance training and 4 weeks no training on left ventricular morphology of the male athletes 2017-08-23 anticipated 20 Complete https://irct.ir/trial/25506 interventional Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Prevention. N/A The left ventricular morphology of the heart. Each of the resistance training periods includes 3 sessions of 90 minutes upper and lower extremities weight training in 6 repetitions and 3 sets in 40, 60 and 80% intensity of a maximum repetition, and the period of warm up and return to the initial state. So that at the end of the first four weeks of resistance training, a record of a maximum repetition in 8 movement of the leg and chest press, the scout, the long, the lift, the propeller, the press, and the biceps with the barbell were measured again and the intensity of the exercises in the next month program based on the record for a new maximum repeat will be set and administered..