Table 2.
Tandem Gait and Symptom Outcome Measures at Each Testing Point
|
Variable |
Time, Mean ± SD |
P Value |
||
|
1 |
2 |
3 |
||
| Single task | ||||
| Single-task tandem gait time, s | 14.4 ± 4.8 | 13.5 ± 4.2 | 13.8 ± 4.8 | .45 |
| Cognitive test correct answers during quiet stance, No. | 39.8 ± 14.8 | 49.3 ± 16.0 | 51.5 ± 19.6 | <.001a |
| Cognitive test total responses during quiet stance, No. | 41.5 ± 14.7 | 51.1 ± 15.3 | 53.0 ± 19.3 | <.001a |
| Cognitive test accuracy during quiet stance, % correct | 95.7 ± 6.3 | 95.9 ± 5.7 | 95.3 ± 9.1 | .86 |
| Dual task | ||||
| Dual-task tandem gait time, s | 18.6 ± 6.9 | 16.6 ± 4.5 | 15.8 ± 4.7 | .018b |
| Cognitive test correct answers during tandem gait, No. | 20.9 ± 6.6 | 21.9 ± 6.5 | 21.2 ± 6.8 | .60 |
| Cognitive test total responses during tandem gait, No. | 22.2 ± 6.3 | 23.2 ± 7.4 | 21.8 ± 6.9 | .54 |
| Cognitive test accuracy during tandem gait, % correct | 93.1 ± 7.8 | 94.7 ± 6.6 | 97.0 ± 3.3 | .08 |
a
Pairwise follow-up testing indicated fewer correct and total responses at test 1 compared with test 2 (P < .001) and test 3 (P < .001).
b
Pairwise follow-up testing indicated a slower time for test 1 compared with test 3 (P = .011).