Physiological Profiles of International- and Collegiate-Level Japanese Male Freestyle Wrestlers in the Lightweight Classes

Abstract

Abstract The purpose of this study was to clarify the physiological abilities of international-level male wrestlers compared with those of collegiate-level wrestlers. Twenty Japanese male freestyle wrestlers in the lightweight classes were categorized into two groups. The first group comprised 11 international-level wrestlers. The second group comprised 9 collegiate-level wrestlers. Body composition was assessed by a multifrequency bioimpedance-analysis device. Isokinetic concentric knee and hip extension and flexion torque were measured using an isokinetic dynamometer at 180 and 60 deg/sec. Anthropometric data were obtained through three-dimensional scanning. Eleven circumferences (neck, both upper arms, both forearms, both thighs, both lower legs, chest, and hip) and four lengths (both arms and both legs) were computed. Simple reaction time was evaluated using an electronic device. Between-group comparisons of these variables were performed with unpaired t tests or Welch’s tests. There were no differences in body composition, circumferences, and limb length between groups, other than chest circumference (p < .05). There were no differences in hip and knee strength and simple reaction time between groups. These results suggest that chest circumference is important for becoming an international-level wrestler. Additionally, other aspects, such as multijoint motor and technical skills, may be important for international-level wrestlers.