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Table 2 Comparison of footballers, runners and other sportsmen by Means of anthropometric, activity and ultrasound parameters

From: Assessment of the bone quality of black male athletes using calcaneal ultrasound: a cross-sectional study

Characteristic Footballera (n = 68) Runnerb (n = 14) Otherc (n = 19) P-value
     a*b*c a*b a*c b*c
Age (years) 23 ± 4 31 ± 8 27 ± 6 <0.001 <0.001 0.005 0.06
Weight (kg) 66.3 ± 7.0 58.7 ± 6.0 67.6 ± 10.3 0.001 <0.001 0.52 0.005
Height (m) 1.73 ± 0.6 1.69 ± 0.6 1.76 ± 0.7 0.005 0.01 0.09 0.004
BMI (kg/m2) 22.1 ± 1.8 20.6 ± 1.9 21.7 ± 2.4 0.02 0.004 0.36 0.17
Activity (kcal/kg/d) 35 ± 13 27 ± 12 40 ± 16 0.02 0.02 0.20 0.01
BUA (dB/MHz) 142 ± 9 143 ± 11 135 ± 13 0.02 0.62 0.01 0.06
SOS (m/s) 1625 ± 40 1623 ± 28 1590 ± 39 0.003 0.84 0.001 0.01
SI 130 ± 15 130 ± 12 115 ± 18 0.001 0.96 <0.001 0.01
T-score +0.85 ± 0.88 +0.86 ± 0.69 -0.01 ± 1.0 0.001 0.96 0.001 0.01
  1. P < 0.01 indicates statistical significance (Bonferroni correction).
  2. a*b*c = comparison of footballers (a) with runners (b) and other sportsmen (c).
  3. a*b = comparison of footballers (a) with runners (b).
  4. a*c = comparison of footballers (a) with other sportsmen (c).
  5. b*c = comparison of runners (b) with other sportsmen (c).
  6. Others include handball, high jump, taekwando, wrestling, cycling, badminton and judo.