Relationship between changes over time in body composition and record breaking in college female track and field athletes

Abstract

The purpose of this study was to clarify the differences in body composition between college female track and field athletes who renewed their PB in one season and those who did not renew their PB. The body composition values before and after the season’s best were compared between the PB renewal group and the PB non-renewal group and were analyzed. The total lean body mass was higher in the PB renewal group than in the non-PB renewal group. In addition, a main effect of total lean body mass was observed before and after SB, with significantly higher values measured before SB regardless of performance (F (1,41)＝10.8, p＝0.002). The results suggest that not only total lean body mass, but also total fat body mass should be taken into account when referring to body composition.