Peripheral muscle mass and strength
| COPD(n = 29) | Healthy subjects(n = 18) | Mean difference(95% CI) | p value | |
|---|---|---|---|---|
| Values are mean (SE). | ||||
| MTCSA, mid thigh muscle cross sectional area; MVC, maximal voluntary contraction; MVC/MTCSA, ratio of maximal strength to mid thigh muscle cross sectional area; Tf, time to fatigue. | ||||
| MTCSA (cm2) | 66 (3) | 107 (3) | 41 (31 to 51) | <0.001 |
| MVC (kg) | 28 (2) | 45 (3) | 17 (10 to 23) | <0.001 |
| MVC/MTCSA (kg/cm2) | 0.41 (0.02) | 0.43 (0.02) | 0.02 (−0.04 to 0.07) | NS |
| Tf (seconds) | 42 (3) | 80 (7) | 38 (25 to 50) | <0.001 |