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Table 2 Body composition and bone mineral density of netball players stratified by positional group

From: Body composition in professional female netball players within and between seasons: a cohort study

  Midcourt players Goal circle players   
Variable Mean [SD] Range Mean [SD] Range Hedges’ g [95 % CI] P value
  n = 7   n = 13    
Age, y 27.8 [3.3] 23.4–32 25.8 [5.3] 18.2–34.7 0.40 [-0.55, 1.36] 0.32
Stature, cm 172.9 [5.2] 167.6–180 187.9 [6.7] 177.5–199 -2.30 [-3.50, -1.11] < 0.01
Body mass, kg 69.4 [7.0] 62.5–81.7 81.6 [8.2] 67.9–98.1 -1.51 [-2.56, -0.45] < 0.01
Bone mass, g 3094 [315] 2681–3510 3475 [298] 3128–3992 -1.20 [-2.22, -0.18] 0.02
Scaled bone mass, kg∙m− 2 1.03 [0.07] 0.95–1.12 0.99 [0.1] 0.83–1.13 0.47 [-0.48, 1.43] 0.26
Relative bone mass, % 4.4 [0.3] 4.1–5 4.3 [0.4] 3.4–4.9 0.38 [-0.57, 1.33] 0.37
Bone mineral density, g∙cm2 1.42 [0.08] 1.34–1.51 1.43 [0.09] 1.32–1.63 -0.12 [-1.06, 0.83] 0.78
Lean mass, g 51,758 [4856] 45,325–59,103 57,953 [3636] 51,727–61,807 -1.45 [-2.50, -0.40] 0.01
Scaled lean mass, kg∙m− 2 17.28 [0.99] 16.1–19.1 16.43 [1.11] 14.93–18.5 0.76 [-0.22, 1.73] 0.10
Relative lean mass, % 74.4 [3.3] 71.4–80.8 71.3 [3.6] 63.8–78.2 0.85 [-0.14, 1.83] 0.07
Fat mass, g 14,848 [3181] 10,076–19,626 20,212 [4988] 11,628–31,696 -1.15 [-2.16, -0.14] < 0.01
Scaled fat mass, kg∙m− 2 4.95 [0.95] 3.32–6.34 5.72 [1.38] 3.5–8.3 -0.59 [-1.55, 0.37] 0.16
Relative fat mass, % 21.2 [3.3] 14.8–23.9 24.5 [4] 17–32.8 -0.84 [-1.82, 0.14] 0.06
  1. Hedges’ g effect sizes can be interpreted as negligible (≤ 0.20), small (0.21–0.50), medium (0.51–0.8) and large (> 0.8)
  2. SD Standard deviation, CI Upper and lower confidence interval