TABLE 1.
Baseline subject characteristics.
| Clinical variable | Trained (n = 5) | Sedentary (n = 5) | T-test* |
| Age (yrs) | 68.2 ± 1.6 | 70.4 ± 1.4 | 0.331 |
| Weight (kg) | 77.1 ± 7.9 | 89.6 ± 7.5 | 0.284 |
| BMI (kg/m2) | 26.1 ± 2.4 | 28.7 ± 1.8 | 0.411 |
| Total Fat Mass (kg) | 20.2 ± 5.2 | 31.8 ± 4.8 | 0.140 |
| SMI (ALM/height2) | 8.5 ± 0.5 | 8.2 ± 0.5 | 0.683 |
| Total Lean Mass (kg) | 55.0 ± 3.3 | 55.0 ± 3.2 | 1 |
| Leg Lean Mass (kg) | 9.0 ± 0.6 | 9.5 ± 0.7 | 0.602 |
| VO2 max (ml/kgBW/min) | 34.4 ± 1.1 | 21.7 ± 1.2 | < 0.0001 |
| Daily Average Steps (steps/24 h) | 6386 ± 410 | 4916 ± 1370 | 0.354 |
Values are expressed as mean +/− SEM. *Unpaired t test; BMI, body mass index; SAT, subcutaneous adipose tissue; SMI, skeletal muscle index; ALM, appendicular skeletal muscle mass; Total Lean Mass = Total Weight − Fat Mass; Muscle Volume, volume of muscle tissue; VO2 max, maximal oxygen uptake (cardiorespiratory fitness); BW, body weight.