Watanabe, M., & Takai, S. (2005). Analysis of factors on development of performance in young swimmers. Medicine and Science in Sports and Exercise, 37(5), Supplement abstract 416.

This study investigated the effect factors for swimming performance at various stages of physical maturity. Swimmers in training (M = 175; F = 213; Ages 8-18 yr) were classified into three groups, namely earlier adolescence, later adolescence, and your adulthood. Swimming performance was the personal best time for 50 m (assumed to be crawl stroke).

Stroke technique was the most effective parameter for explaining swimming performance throughout adolescence. Its effect lessened in the young adult group. With age, body size becomes increasingly important. Other factors measured (muscle strength, flexibility, body fat) were not related to performance.

Implication. In swimmers undergoing growth to maturity, technique is the major factor that determines 50-m performance. With age, body size increasingly becomes associated with performance.

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