Effect of 4 Months of Selected Exercises on Heart rate Variability and Pulmonary Function in Soccer Players

Karimzadeh, Meisam (2019) Effect of 4 Months of Selected Exercises on Heart rate Variability and Pulmonary Function in Soccer Players. Masters thesis, University of Mohaghegh Ardabili.

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Abstract

Research Aim: The purpose of this study was to investigate the effect of 4 months of selected training on heart rate variability (HRV) and pulmonary function in soccer players. Research method: 30 subjects were divided into two groups of exercise (n= 15) and control (n= 15). Exercises were held 3 sessions per week for 4 months. Heart rate variability was measured by holtermonitoring device before and after 4 months of exercise. Pulmonary function was also measured by a spirometer. Descriptive statistics were used to analyze the research findings and within-group comparisons were used for analysis of covariance (ANCOVA). Also, t-test was used to determine the intra-group changes in each group at pre-test and post-test. Statistical operations and statistical analyzes were performed at P≤0.05 using SPSS 23 and Excel 2013 statistical software. Findings: The SDNN, rMSSD, HF and LF indices in the training group were significantly increased in the post-test compared to the pre-test and also in the control group. There was no significant change in frequency of VLF based on exercise group subjects in post test compared to pre test. The LF / HF ratio of the training group in the post-test compared to the pre-test did not change significantly. Post-test changes in the training group were not significantly different compared to the control group. The pulmonary index (FVC) and (FEV1) of the training group increased significantly in the post-test compared to the pre-test phase as well as in the control group post-test. Conclusion: Participation in aerobic and interval exercise has a positive effect on baroreceptor regulation point and its effects on heart rate variability.

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