Table 1 Descriptive statistics for growth and maturity characteristics of male and female elite youth British tennis players
Male (n = 40) (mean ± SD) | Female (n = 31) (mean ± SD) | |
|---|---|---|
Chronological age (CA), years | 12.5 ± 1.8 | 12.7 ± 2.0 |
Weight, kg | 48.0 ± 12.9 | 48.2 ± 10.6 |
Height, cm | 159.0 ± 14.4 | 156.7 ± 9.7 |
Sitting height, cm | 82.5 ± 7.4 | 83.0 ± 5.2 |
Estimated leg length, cm | 76.5 ± 7.5 | 73.7 ± 5.1 |
Skeletal age (SA), years | 12.7 ± 2.5 | 13.1 ± 2.1 |
SA minus CA, years | 0.13 ± 1.11 | 0.35 ± 1.02 |
Father’s height, cm | 182.5 ± 5.8 | 178.7 ± 5.7 |
Mother’s height, cm | 168.1 ± 5.5 | 165.6 ± 4.9 |
Predicted adult height, cm | 182.8 ± 5.5 | 167.1 ± 3.9 |
Height as % of adult height, % | 86.9 ± 6.9 | 93.62 ± 5.8 |
Height as % of adult height, z | 0.22 ± 0.6 | − 0.11 ± 0.6 |
Predicted maturity offset, years | − 0.9 ± 1.8 | 0.8 ± 1.6 |
Predicted age at peak height velocity, years | 13.4 ± 0.5 | 12.0 ± 0.6 |