P277 RV remodeling by echo parameters in endurance and strength sport training

Abstract

Introduction: With regular and long-term exercises, the heart undergoes changes that are called the adaptation of the heart in response to exercise or physiological changes, which contrasts with the pathological changes caused by hypertension and aortic valve stenosis. However, the exact effects of exercise on the structure and function of the heart depend on the type, intensity and duration of exercise, the amount of physical fitness, inheritance, and gender. Material(s) and Method(s): In this prospective clinical trial study, 40 subjects, including 20 in the endurance exercise group and 20 in the exercise group, were evaluated. Echocardiography was performed for all of these subjects before and after the exercises that was performed professionally for 8 weeks under the supervision of the trainer and the changes were recorded. The data were analyzed statistically by SPSS20 software. A significant level of 0.05 was considered. Result(s): The mean +/- standard deviation of the age was 20/80 +/- 1/42 years. Significant decrease in mean RVSM was observed only in the strength group (P = 0.008). There was no significant difference in the endurance group . There was no significant difference between the two groups before the test in the mean TAPSE (P = 0.46). The mean of TAPSE in the endurance group was 0.22 +/- 1.99 and in the strength group was 0.31 +/- 1.95. There was no significant difference between the two groups (P 0.46). There was no significant difference between the two groups before the test in the mean E / e (P = 0.51). The mean E / e "in the endurance group was 0.47 +/- 4.75 and in the strength group was 0.54 +/- 5.50, and there was a significant difference between the two groups (P <0.001). The mean SWDT in the endurance group was 0.12 +/- 0.95 and in the strength group was 0.11 +/- 1.06, and there was a significant difference between the two groups (P = 0.002). There was a significant increase in mean SWDT in the strength group after the test (P <0.001) .There was a significant increase in mean PAP in the strength group (P = 0.007) . There was a significant increase in mean LV mass index in the strength group (P <0.001),with no significant difference between the two groups in mean FAC. Conclusion(s): It seems that any kind of strength and endurance exercise affects the performance status, however, strength exercises have more effects which causes RV dysfunction. All indexes measured changed within normal level except for PAP that had abnormal changes after endurance exercise .(Figure Presented).