<![CDATA[Martial arts require distinct physical profiles and impose specific physiological demands on athletes. Performance in martial arts is strongly influenced by muscular strength and power. This study aimed to examine the relationship between body composition, particularly fat-free mass and somatotype, and power performance in martial arts athletes. A cross-sectional design was used involving 46 student martial arts athletes representing seven martial arts disciplines at SMA Negeri 10 Bandung. Data were collected through direct measurements, including anthropometric measurements of height and body weight; body composition assessment, including total body fat percentage; and somatotype-related measurements, including skinfold thickness at the triceps, subscapular, suprailiac, and medial calf sites, humerus and femur breadths, and arm and calf circumferences. The data were analyzed using the chi-square test. The results showed significant associations between fat-free mass and upper-body power performance (p = 0.001; odds ratio [OR] = 11.458) and between fat-free mass and lower-body power performance (p = 0.008; OR = 7.028). A significant association was also found between somatotype and upper-body power performance (p = 0.0303), whereas no significant association was observed between somatotype and lower-body power performance. Athletes with normal fat-free mass values had 11.458 times higher odds of demonstrating greater upper-body power performance and 7.028 times higher odds of demonstrating greater lower-body power performance than athletes with low fat-free mass values. These findings indicate that fat-free mass was significantly associated with both upper- and lower-body power performance, whereas somatotype was significantly associated only with upper-body power performance.]]>
