title: Predictor variables of performance in recreational male long-distance inline skaters.
abstract: We investigated the associations between selected anthropometric and training characteristics with race time in 84 recreational male long-distance inline skaters at the longest inline marathon in Europe, the 'Inline One-eleven' over 111 km in Switzerland, using bi- and multivariate analysis. The mean (s) race time was 264 (41) min. The bivariate analysis showed that age (r = 0.30), body mass (r = 0.42), body mass index (r = 0.35), circumference of upper arm (r = 0.32), circumference of thigh (r = 0.29), circumference of calf (r = 0.38), skin-fold of thigh (r = 0.22), skin-fold of calf (r = 0.27), the sum of skin-folds (r = 0.43), percent body fat (r = 0.45), duration per training unit in inline skating (r = 0.33), and speed during training (r = -0.46) were significantly and positively correlated to race time. Stepwise multiple regression showed that duration per training unit (P = 0.003), age (P = 0.029) and percent body fat (P = 0.016) were the best correlated with race time. Race time in a long-distance inline race such as the 'Inline One-eleven' over 111 km with a mean race time of ∼260 min might be predicted by the following equation (r(2) = 0.41): Race time (min) = 114.91 + 0:51* (duration per training unit, min) + 0:85* (age, years) +3:78* (body fat, %) for recreational long-distance inline skaters.
authors.affiliation: Gesundheitszentrum, St. Gallen, Switzerland. beat.knechtle@hispeed.ch
authors.forename: Beat
authors.initials: B
authors.lastname: Knechtle
authors.forename: Patrizia
authors.initials: P
authors.lastname: Knechtle
authors.forename: Christoph Alexander
authors.initials: CA
authors.lastname: Rüst
authors.forename: Oliver
authors.initials: O
authors.lastname: Senn
authors.forename: Thomas
authors.initials: T
authors.lastname: Rosemann
authors.forename: Romuald
authors.initials: R
authors.lastname: Lepers
mesh_terms: D000328:Adult; D000367:Age Factors; D054874:Athletic Performance; D001823:Body Composition; D001837:Body Weights and Measures; D003163:Competitive Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D010806:Physical Education and Training; D005082:Physical Exertion; D011998:Recreation; D012044:Regression Analysis; D012861:Skating