Table 1 Means and standard deviations by type of sport (swimmers vs. volleyball players) on age, training experience, dietary intake, body size and skinfolds
X: Sport | Comparisonsb | ||||||
|---|---|---|---|---|---|---|---|
Dependent variables Yi | Swimming (n=20) | Volleyball (n=26) | mean difference (95%CI) | t-student | Magnitude effects | ||
t-value | p | d | (description) | ||||
Y1: Chronological age (years) | 15.71±0.93 | 16.20±0.77 | -0.49 (-1.00; 0.02) | -1.957 | 0.057 | -0.59 | (small) |
Y2: Age at menarche (years) | 13.31±1.33 | 12.59±0.95 | 0.72 (0.04; 1.39) | 2.121 | 0.040 | 0.65 | (moderate) |
Y3: Years of training (years) | 8.9±3.9 | 4.1±1.8 | 4.8 (2.9; 6.7) | -3.836 | <0.01 | 1.69 | (large) |
Y4: Annual number of training sessions (#) | 298±34 | 115±26 | 182 (164; 200) | 20.814 | <0.01 | 6.30 | (extremely large) |
Y5: Energy intake a (Kcal/day) | 2557±1188 | 3036±1188 | -480 (-1305; 346) | -1.183 | 0.245 | -0.42 | (small) |
Y6: Proteins a (%Kcal) | 18.1±2.8 | 20.5±5.2 | -2.4 (-5.5; 0.7) | -1.590 | 0.128 | -0.62 | (moderate) |
Y7: Cholesterol a (mg) | 353±174 | 527±241 | -174 (-317; -32) | -2.485 | 0.018 | -0.87 | (moderate) |
Y8: Calcium a (mg) | 1141±556 | 1334±455 | -192 (-550; 166) | -1.091 | 0.283 | -0.39 | (small) |
Y9: Stature (cm) | 161.3±4.4 | 164.2±6.0 | -2.9 (-6.1; 0.3) | -1.821 | 0.075 | -0.55 | (small) |
Y10: Body mass (kg) | 55.0±5.6 | 61.0±9.0 | -6.0 (-10.6; -1.3) | -2.596 | 0.013 | -0.79 | (moderate) |
Y11: Skinfold triceps (mm) | 17.9±6.0 | 20.4±3.9 | -2.5 (-5.7; 0.6) | -1.642 | 0.111 | -0.52 | (small) |
Y12: Skinfold subscapular (mm) | 12.4±4.2 | 13.3±3.5 | -1.0 (-3.3; 1.3) | -0.868 | 0.390 | -0.24 | (small) |
Y13: Skinfold suprailiac (mm) | 17.8±5.5 | 22.7±6.9 | -4.9 (-8.7; -1.1) | -2.581 | 0.013 | -0.79 | (moderate) |
Y14: Skinfold abdominal (mm) | 17.6±6.1 | 22.0±7.1 | -4.5 (-8.5; -0.4) | -2.233 | 0.031 | -0.67 | (moderate) |
Y15: Skinfold thigh anterior (mm) | 18.7±6.8 | 25.1±5.6 | -6.5 (-10.1; -2.8) | -3.556 | 0.001 | -1.06 | (moderate) |
Y16: Skinfold calf medial (mm) | 17.9±5.3 | 17.7±4.8 | 0.20 (-2.8; 3.2) | 0.113 | 0.910 | 0.04 | (trivial) |