Table 1: Characteristics of youth swimmers (mean ± SD).

Chronological age (years) Time in competitive swimming (years) Average training per week (hours) Average distance per week (km) 100 m freestyle PB (s)
Male (n = 4) 13.5 ± 1.0 5.5 ± 1.0 13.0 ± 1.0 37.5 ± 5.0 66.5 ± 5.7
Female (n = 5) 12.6 ± 1.1 4.2 ± 0.8 11.3 ± 2.4 34.0 ± 6.5 67.6 ± 5.4
All (n = 9) 13.0 ± 1.1 4.8 ± 1.1 12.1 ± 2.0 35.6 ± 5.8 67.1 ± 5.2