Main Article Content
Body composition, Endurance, Strength
Introduction: The notion that individuals with a low body mass index (BMI) exhibit higher body fat percentages than those with a higher BMI is popular within the fitness industry. This is often referred to as the “skinny- fat” phenotype. The purpose of this cross-sectional investigation was to examine the relationship between BMI and body composition in a group of male and female resistance- and endurance-trained individuals. Methods: One hundred and fifteen exercise-trained individuals (n = 57 male, n = 58 female) were assessed for body composition via the Bod Pod®. Body weight, lean body mass, fat mass and BMI was ascertained. The relationship between BMI and body fat percentage were assessed with correlations.
Results: Males had statistically greater (p < 0.05) height, body weight, lean body mass, and BMI compared to females. Furthermore, males had significantly lower (p < 0.05) fat mass and body fat percentage than females. Moreover, there was a moderately positive correlation (r = 0.5069 male, p < 0.001; r = 0.5196 female, p < 0.001) between BMI and body fat percentage.
Conclusions: There is a moderately positive relationship between BMI and body fat percentage in strength- and endurance-trained individuals. Furthermore, individuals with a higher BMI also tended to have a greater body fat percentage.
2. Lee SS, Yoo JH, Kang S, et al. The Effects of 12 Weeks Regular Aerobic Exercise on Brain- derived Neurotrophic Factor and Inflammatory Factors in Juvenile Obesity and Type 2 Diabetes Mellitus. J Phys Ther Sci. Aug 2014;26(8):1199-1204.
3. Pollock ML, Mengelkoch LJ, Graves JE, et al. Twenty-year follow-up of aerobic power and body composition of older track athletes. Journal of applied physiology. May 1997;82(5):1508- 1516.
4. Marti B, Howald H. Long-term effects of physical training on aerobic capacity: controlled study of former elite athletes. Journal of applied physiology. Oct 1990;69(4):1451-1459.
5. Kostrzewa-Nowak D, Nowak R, Jastrzebski Z, et al. Effect of 12-week-long aerobic training programme on body composition, aerobic capacity, complete blood count and blood lipid profile among young women. Biochemia medica. 2015;25(1):103-113.