Skip to main content

Table 2 Maturity-related differences in anthropometry and body composition in adolescent boys

From: Influence of maturation on anthropometry and body composition in Japanese junior high school students

  PH1 PH2 PH3 PH4 PH5 Post hoc test
  (n = 11) (n = 35) (n = 19) (n = 24) (n = 25) (P < 0.05)
Age (years) 13.2 ± 0.2 13.4 ± 0.2 13.4 ± 0.3 13.5 ± 0.2 13.5 ± 0.3 PH < PH4,PH5
Height (cm) 147.4 ± 8.8 151.4 ± 6.4 157.1 ± 7.4 162.4 ± 4.7 165.4 ± 4.7 PH1, PH2 < PH3-5
PH3 < PH4-5,
PH4 < PH5
Weight (kg) 41.0 ± 10.0 41.5 ± 6.7 48.3 ± 8.9 51.8 ± 7.9 54.5 ± 4.8 PH1, PH2 < PH4, PH5
PH2 < PH3,
PH3 < PH5
PH2 < 5
BMI (kg/m2) 18.77 ± 2.7 18.0 ± 2.2 19.5 ± 3.3 19.6 ± 2.5 20.0 ± 1.8  
% Fat (%) 16.0 ± 6.7 13.9 ± 6.5 17.7 ± 11.2 17.0 ± 8.0 18.3 ± 5.7  
LBM (kg) 33.9 ± 5.0 35.4 ± 4.0 39.0 ± 4.6 42.4 ± 3.2 44.4 ± 3.1 PH1, PH2 < PH3-5
PH3 < PH5
CTHIGH (cm) 43.1 ± 5.3 42.3 ± 3.7 45.4 ± 4.8 46.7 ± 4.2 47.4 ± 2.5 PH1,PH2 < PH3-5
PH1 < PH5
CLOWER (cm) 32.0 ± 3.6 31.5 ± 2.5 33.8 ± 2.8 34.5 ± 2.2 34.9 ± 1.8 PH1, PH2 < PH5
PH2 < PH3, PH4
Muscle thickness (cm)       
Anterior thigh 4.3 ± 0.6 4.2 ± 0.6 4.5 ± 0.5 4.8 ± 0.4 4.7 ± 0.4 PH2 < PH4, PH5
Posterior of lower leg 5.9 ± 0.6 5.8 ± 0.4 6.4 ± 0.5 6.4 ± 0.4 6.5 ± 0.5 PH1, PH2 < PH5
PH2 < PH3, PH4
Rectus abdominis 1.0 ± 0.2 0.9 ± 0.1 1.1 ± 0.2 1.2 ± 0.2 1.3 ± 0.2 PH1-3 < PH5
PH2 < PH4
Muscle thickness per LBM1/3 (cm/kg1/3)       
Anterior of lower leg 1.31 ± 0.13 1.27 ± 0.16 1.32 ± 0.16 1.37 ± 0.10 1.32 ± 0.21  
Posterior of lower leg 1.82 ± 0.12 177 ± 0.10 1.89 ± 0.14 1.83 ± 0.09 1.84 ± 0.12  
Rectus abdominis 0.31 ± 0.04 0.29 ± 0.04 0.32 ± 0.04 0.33 ± 0.04 0.36 ± 0.06 PH2 < PH4, PH5
  1. Values are expressed as mean ± SD. Age, chronological age; BMI, body mass index;% Fat, percent body fat; LBM, lean body mass; CTHIGH, circumference of thigh; CLOWER, circumference of lower leg; PH, stage of pubic hair development.