Convergent validity
| Outcome Measure | 6MWT | p-value |
|---|---|---|
| MMM percent score | 0.79 | 0.0000 |
| Hip Flexion HHD (pounds) | 0.52 | 0.0079 |
| Grip strength (pounds) | 0.61 | 0.0008 |
| 4 stair climb (s) | –0.84 | 0.0000 |
| 4 meter walk (s) | –0.83 | 0.0000 |
| 10 meter walk (s) | –0.88 | 0.0000 |
| Timed up and Go test (s) | –0.87 | 0.0000 |
| 2 MWT (m) | 0.99 | 0.0000 |
| NeuroQOL upper extremity | 0.26 | 0.2026 |
| NeuroQOL lower extremity | 0.68 | 0.0001 |
| PROMIS Physical Function | 0.77 | 0.0000 |
| SF–36 PCS | 0.62 | 0.0008 |
| SF–36 MCS | 0.21 | 0.3024 |