Table 1 The demographic data and baseline biomarker concentrations of college students and athletes performing strength training; data are expressed as Mean (SD)
Control | Athlete | P value* | |||
|---|---|---|---|---|---|
All athletes | Basketball | Weight lifting | |||
N | 29 | 28 | 18 | 10 | |
Age (year) | 21.2 (1.6) | 20.5 (1.2) | 20.6 (1.3) | 20.6 (1.2) | 0.083 |
Height (cm) | 174 (6) | 181 (8) | 185 (7)** | 173 (4) | 0.002 |
Weight (kg) | 69.0 (8.9) | 88.3 (15.2) | 90.0 (15.4) | 85.3 (15.2) | <0.001 |
BMI (kg/m2) | 22.5 (2.4) | 26.9 (4.1) | 26.0 (3.5) | 28.4 (4.8) | <0.001 |
Fat mass (%) | 13.1 (4.4) | 18.2 (9.1) | 16.6 (8.1) | 21.2 (10.4) | 0.011 |
Fat-free mass (kg) | 59.7 (6.1) | 71.2 (7.7) | 74.1 (7.2)** | 65.9 (5.6) | <0.001 |
Muscle mass (kg) | 27.8 (3.5) | 34.3 (4.3) | 35.7 (4.2)** | 31.8 (3.4) | <0.001 |
Waist girth (cm) | 80.2 (7.2) | 89.9 (10.8) | 90.0 (10.3) | 89.5 (12.0) | <0.001 |
Grip strength (kg) | 42.9 (4.4) | 48.5 (6.1) | 46.5 (5.6)** | 52.1 (5.4) | <0.001 |
Myostatin (ng/mL) | 12.4 (3.5) | 12.1 (3.7) | 12.6 (3.9) | 11.2 (3.3) | 0.740 |
IGF-1 (ng/ml) | 263 (134) | 324 (80) | 318 (82) | 334 (80) | 0.043 |
Estimated daily energy expenditure (kcal/day) | 3059 (1123) | 4152 (813) | 4216 (794) | 4036 (877) | <0.001 |