Effects of resistance training and detraining period on the LVIDS, LVIDD, PWT,IVST,FS%,RWT indices of the Left ventricular sedentary men
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Authors
1ardakan universitiy
2ardakan university
3university ardakan
Abstract
Introduction: The aim of this study was the effects of 8 weeks of progressive resistance training and a detraining period, after that, on the LVIDS, LVIDD, PWT, IVST, FS%, RWT indices of Left ventricular sedentary men.
Methodology: The approach of the study was semi-clinical trial, which was conducted field-laboratory, 40 sedentary men who are unable to attend regular training in the protocols and criteria to the study, randomly selected and randomly divided into two groups: RT group (20 person) and control group (20 person). Baseline characteristics, body composition and structural parameters and cardiac function (left ventricular end-diastolic diameter (LVIDD), left ventricular end systolic diameter (LVIDS), left ventricular end-diastolic posterior wall thickness (PWT), ventricular septal thickness at end diastole (IVST), percentage of left ventricular shortening of muscle fibers (FS%), relative left ventricular wall thickness (RWT))with echocardiogram in three stages (before the start of training, the end of the 8 week and the end of 4 weeks of detraining) using standard tools and devices echocardiogram were measured. The training protocol was administered for 12 weeks including 8 weeks of training program three times a week and four weeks of detraining after that. Data collected using independent T test and ANOVA at the significant level of p<0.05.
Results: The results showed that there was significant difference between LVIDD, PWT, IVST, FS%, RWT and LVIDS values from pre-test to post-test in experimental and control groups (P<0.05). Also, from post-test to the end of the period of training, significant differences were observed in the LVIDD, PWT, IVST, FS%, RWT and LVIDS values(P<0.05).
Discussion: Thus based on the results of this study it can be stated that 8 weeks of resistance training applied to make appropriate changes in the structure and function of sedentary men's heart, while the 4 weeks of detraining on the adaptations and modifications obtained have been adverse effect. Therefore, it is recommended that people exercise for systematic and regular follow up.
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