Abstract:

In the study, the acute effects of two different concurrent training models including high intensity interval training (HIIT) and high intensity interval functional training (HIFT) plus strength training (S) on physiological indicators (lactate and heart rate) and performance (balance and explosive power) parameters were examined in soccer players. A total of 13 moderately active young soccer players (19.92; ±1.44 years) participated in the study. In the study, body composition measurements, heart rate, lactate, explosive strength measurement and balance testing were measured. Training models (S+HIIT-S+HIFT) were applied sequentially with a crossover design. The training sessions were conducted with a three-day interval. Parameters were analyzed with SPSS24 (SPSS Inc., Chicago, IL, USA). Repeated Measure Analysis of Variance (ANOVA) was used for repeated measures and Bonferroni Correction was used for pairwise comparisons. Significance level was accepted as p<0.05. The observation that both heart rate (HR) and LA values exhibited similar increases in the concurrent training groups (S+HIIT and S+HIFT) in relation to the training intensity suggests that the intensity was appropriately calibrated in both training programs within the scope of this study. Upon evaluating the recovery processes of both training models, it was observed that the S+HIIT group exhibited a statistically significant and more rapid drop in the lactate value compared to the S+HIFT group. When the explosive force performance (CMJ) was analyzed; S+HIFT explosive force value was found to be lower than the baseline value, while this value was higher in the S+HIIT group compared to the baseline value. In summary, there was a statistically significant difference CMJ in the S+HIIT group (p<0.020), while this difference was not significant in the S+HIFT group. In our study, it was determined that the changes in balance performance before and after training were similar in both groups (p>0.05).

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