Stability and prediction of 100-m breaststroke performance during the careers o...

• Author(s): Costa, M.J. ; Marinho, D.A. ; Reis, V.M. ; Silva, A.J. ; Bragada, José A. ; Barbosa, Tiago M.
• Date: 2010
• Persistent ID: http://hdl.handle.net/10198/3536
• Origin: Biblioteca Digital do IPB
• Subject(s): Stability; Prediction; Tracking; Breaststroke
• Document Type: Article
• Language: English

Description

The aim of this study was to track and analyze the 100-m Breaststroke performance stability throughout elite swimmer’s career. 35 Portuguese male top-50 were analyzed for seven consecutive seasons between 12 and 18 years old. Best performances were collected from ranking tables. Longitudinal assessment was performed based on two approaches: (i) mean stability was analyzed by descriptive statistics and ANOVA repeated measures for each season followed by a post-hoc test (Bonferroni test), (ii) normative stability was analyzed with self-correlation (Malina, 2001) and the Cohen’s Kappa tracking index (Landis and Koch, 1977). There was a 100-m Breaststroke performance enhancement from children to adult age. The overall career performance prediction was low. The change from 13 to 14 years can be a milestone, where the ability to predict the final swimmer’s performance level strongly increases.