Table 1.
Participant Characteristics
| Active Women | Inactive Women | |
|---|---|---|
| N | 7 | 7 |
| Age (y) | 77.3 (1.7) | 83.0 (1.8)* |
| BMI (kg/m2) | 22.6 (0.6) | 25.0 (1.3) |
| PASE | 221.0 (23.7) | 58.6 (11.5)* |
| MPPT | 35.7 (0.2) | 17.6 (2.8)* |
| Leg Lean CSA (%) | 88.2 (0.6) | 82.0 (2.0)* |
| 6MW (m) | 518.6 (28.6) | 308.7 (49.1)* |
| GS (m/s) | 1.12 (0.1) | 0.72 (0.1)* |
| Stair Ascent (s) | 4.7 (0.2) | 24.1 (8.9)* |
| MVIC (N) | 267.3 (27.3) | 167.4 (19.2)* |
| MQ (N/cm2) | 2.4 (0.34) | 3.3 (0.25)* |
| Serum insulin (pmol/L) | 41.7 (8.84) | 77.4 (13.84)* |
| Serum glucose (mg/dL) | 5.1 (0.24) | 5.2 (0.10) |
Notes: Data are presented as mean (SE). BMI = body mass index; PASE = physical activity scale for the elderly; MPPT = modified physical performance test score; Leg Lean CSA = percentage of thigh lean tissue average cross-sectional area; 6MW = 6-min walk test; GS = self-selected gait speed; MVIC = maximal voluntary isometric contraction of knee extensor muscles; MQ = muscle quality determined by MVIC and lean mass cross-sectional area. Serum insulin and glucose values were sampled following an overnight fast. *Significant difference between groups (p ≤ .05).