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Table 3 Physical characteristics after adjustment for chronological age 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 (P < 0.05)
  (n = 11) (n = 35) (n = 19) (n = 24) (n = 25)  
Height (cm) 148.4 ± 1.9 151.7 ± 1.0 157.2 ± 1.4 162.0 ± 1.3 164.8 ± 1.2 PH1, PH2 < PH3-5
PH3 < PH5
Weight (kg) 41.6 ± 2.3 41.6 ± 1.3 48.3 ± 1.7 51.5 ± 1.5 54.3 ± 1.5 PH1, PH2 < PH4, PH5
PH2 < PH3
PH2 < PH5
BMI (kg/m2) 18.6 ± 0.8 18.0 ± 0.4 19.5 ± 0.6 19.6 ± 0.5 20.0 ± 0.5  
% Fat (%) 15.4 ± 2.4 13.7 ± 0.6 17.7 ± 1.8 17.2 ± 1.6 18.6 ± 1.6  
LBM (kg) 34.7 ± 1.2 35.7 ± 0.6 39.1 ± 0.9 42.1 ± 0.8 44.0 ± 0.8 PH1, PH2 < PH3-5
PH3 < PH5
PH2 < PH4, PH5
CTHIGH (cm) 43.3 ± 1.2 42.4 ± 0.7 45.4 ± 0.9 46.7 ± 0.8 47.4 ± 0.8  
CLOWER (cm) 32.1 ± 0.8 31.6 ± 0.4 33.8 ± 0.6 34.4 ± 0.5 34.8 ± 0.5 PH1 < PH5
PH2 < PH3-5
Muscle thickness (cm)       
Anterior thigh 4.3 ± 0.2 4.2 ± 0.1 4.5 ± 0.1 4.8 ± 0.1 4.7 ± 0.1 PH2 < PH4, PH5
Posterior of lower leg 6.0 ± 0.1 5.8 ± 0.1 6.4 ± 0.1 6.4 ± 0.1 6.5 ± 0.1 PH1, PH2 < PH5
PH2 < PH3, PH4
Rectus abdominis 1.1 ± 0.1 1.0 ± 0.0 1.1 ± 0.0 1.2 ± 0.0 1.3 ± 0.0 PH1-3 < PH5
PH2 < PH4
Muscle thickness per LBM1/3 (cm/kg1/3)       
Anterior of lower leg 1.31 ± 0.04 1.27 ± 0.02 1.32 ± 0.03 1.37 ± 0.03 1.32 ± 0.03  
Posterior of lower leg 1.51 ± 0.05 1.41 ± 0.03 1.48 ± 0.04 1.48 ± 0.03 1.49 ± 0.03  
Rectus abdominis 0.32 ± 0.01 0.29 ± 0.01 0.32 ± 0.01 0.33 ± 0.01 0.35 ± 0.01 PH2 < PH4, PH5
  1. Values are expressed as adjusted mean ± standard error. 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.