Is Body Fat a Predictor of Race Time in Female Long-Distance Inline Skaters?

Purpose: the aim of this study was to evaluate predictor variables of race time in female ultra-endurance inliners in the longest inline race in europe. methods: we investigated the association between anthropometric and training characteristics and race time for 16 female ultraendurance inline skaters, at the longest inline marathon in europe, the ‘inline one-eleven’ over 111 km in switzerland, using bi- and multivariate analysis. results: the mean (sd) race time was 289.7 (54.6) min. the bivariate analysis showed that body height (r=0.61), length of leg (r=0.61), number of weekly inline skating training sessions (r=-0.51) and duration of each training unit (r=0.61) were significantly correlated with race time. stepwise multiple regressions revealed that body height, duration of each training unit, and age were the best variables to predict race time. conclusion: race time in ultra-endurance inline races such as the ‘inline one-eleven’ over 111 km might be predicted by the following equation (r2 = 0.65): race time (min) = -691.62 + 521.71 (body height, m) + 0.58 (duration of each training unit, min) + 1.78 (age, yrs) for female ultra-endurance inline skaters.