摘要:The aim of this study was to determine the effect of adolescent swimmers’ age, gender, and physical characteristics on their swimming performance and the correlation between their somatotype structure and four different style short distance (50m.) sprint swimming performance. The sample consisted of 61 (n = 36 females, age = 13.00 ± 1.29 years) and (n = 25 males, age = 13.00 ± 1.13 years) active and healthy competitive athletes in Ordu and Giresun clubs. Participation was voluntary. Anthropometric measurements (circumference, diameter, length, and skinfold thickness) were performed using Heath & Carter method, and the correlation between participants’ somatotype structures and four different styles of short-distance sprint swimming performance was determined. Participants had a mean endomorph-mesomorph- ectomorph (somatotype) value of 3.66, 4.15, and 2.56, respectively. Female and male participants had a mean somatotype value of 3.48-4.26- 2.82 and 3.01-4.39-2.89, respectively, indicating that they had an endomorphic mesomorphic structure. Female and male participants’ somatotype structures and swimming performance were similar. Endomorphic structure was positively correlated with free (r = 242), backstroke (r = 254), butterfly (r = 269), and breaststroke (r = 400) style swimming performance. Age had a significant effect on height (p = .000), weight (p = .000), BMI (p = .003), and free (p = .006), butterfly (p = .003), and breaststroke style values (p = .030). There was no significant difference in somatotype structures and swimming performance between female and male participants. In conclusion, while adolescent swimmers have similar somatotype structures and performance values, the older they are, the higher swimming performance they have. There is a significant relationship between endomorphy structure and short-distance sprint swimming performance.