The aim of this study was to investigate the impact of High-Intensity Interval Training (HIIT) on both body composition and endurance levels among professional soccer players. Twenty-one male professional soccer players from 1461 Trabzonspor Club participated in the study, with an average age of 23.00±0.60 years, a height of 183.16±10.1 cm, and a body weight of 78.40±1.69 kg. Various data were collected, including gender, age, body weight (kg), body fat percentage (%BF), body mass index (BMI), neck circumference, hip circumference, waist circumference (cm), and VO2max (measured using the yo-yo test).The statistical analysis was conducted using SPSS 25. Normality of the data was assessed using the Shapiro-Wilk test, and the paired sample t-test was employed for statistical analysis due to the normal distribution of the data. The results revealed a statistically significant difference in body weight (kg), body fat percentage (%BF), body mass index (BMI), neck circumference, hip circumference, and waist circumference (cm) values (p<0.05), indicating that HIIT training was effective in reducing these variables. Additionally, when analyzing the Maximum VO2 values obtained through the yo-yo test, HIIT training demonstrated a statistically significant impact (p<0.05), suggesting that it effectively increased this variable. In conclusion, the HIIT training program implemented among professional soccer players led to notable improvements in reducing certain anthropometric values while simultaneously enhancing Maximum VO2 values.
Türkarslan et al. (Tue,) studied this question.