Table 2.
Baseline results for Physical Capacity and Aerobic Activity Level in Participants with Alzheimer's disease (AD) and Group-Matched Healthy Controls a
| Physical Outcome Measure | AD, Median (Range) (n=25) | Healthy Controls, Median (Range) (n=25) | P Value |
|---|---|---|---|
| Physical capacity | |||
| 10-m comfortable walk test, m/s | 1.11 (0.62-2.0) | 1.32 (0.96-1.71) | <.001 |
| 6-minute walk test, minutes | 490 (344-712) | 578 (399-706) | <.001 |
| TUG | |||
| Single task, seconds | 11 (8-18) | 9 (7-12) | <.001 |
| Dual task, names, seconds | 15 (9-36) | 10 (7-13) | <.001 |
| Dual task, animals, seconds | 17 (12-88) | 10 (7-15) | <.001 |
| TUG difference, names | |||
| Dual task—single task, names, seconds | 3 (−2-22) | 0 (−1-3) | <.001 |
| Dual task cost | 46% | 7% | |
| TUG difference, animals | |||
| Dual task—single task, animals, seconds | 6 (−2-70) | 1 (−2-5) | <.001 |
| Dual task cost | 89% | 11% | |
| Aerobic activity b | |||
| Min/week | 335 (8-945) | 340 (0-1138) | .564 |
| Days/week with aerobic activity ≥30 minutes | 5.2 (0-7) | 4.8 (0-7) | .263 |
Abbreviation: TUG, timed up-and-go test.
a Values denote medians with ranges in parenthesis unless otherwise specified. Mann-Whitney U test was used for group comparisons. Significant values are in boldface.
b Missing value n = 1 in each group.