The Effect of a High-Intensity Interval Training Program on Body Mass Index in Military Personnel
Keywords:
High-Intensity Interval Training, Body Mass Index, Military PersonnelAbstract
This study aimed to investigate the effect of a high-intensity interval training (HIIT) program on the body mass index (BMI) of military personnel. This controlled pretest–posttest intervention included 30 military personnel who were randomly allocated to experimental and control groups (n=15 each). Body weight and height were measured using an AND digital scale (Model HL400) and a SECA stadiometer, respectively. The 8-week HIIT protocol was based on Buchheit and Laursen (2013) and was performed three sessions per week. Because the assumptions required for ANCOVA were not met, between-group posttest BMI scores were compared using one-way ANOVA. Analyses were performed in SPSS version 25 with statistical significance set at p<0.05. There was no statistically significant between-group difference in posttest BMI (F(1,28)=3.212, p=0.084, η²=0.103). Under the present 8-week protocol, HIIT did not produce a statistically significant between-group difference in BMI. Future studies should include direct measures of body composition and dietary monitoring to evaluate changes not captured by BMI.
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