Table 3.
Mean CV (%) values ± 1SD for each spatiotemporal stride parameter under each condition
| Parameters | Single task | Dual-task | ||||
|---|---|---|---|---|---|---|
| Walking only | Walking + texting | Walking + talking on a phone | ||||
| NWS | FWS | NWS | FWS | NWS | FWS | |
| Gait velocity | 2.7 ± 0.8 | 3.1 ± 0.8 | 5.0 ± 1.8 | 5.2 ± 4.0 | 4.1 ± 1.5 | 3.8 ± 1.5 |
| Cadence | 1.7 ± 0.5 | 1.5 ± 0.4 | 2.6 ± 1.1a | 2.4 ± 1.6a | 2.2 ± 0.7b | 2.0 ± 0.6b |
| Stride length | 1.9 ± 0.6 | 2.1 ± 0.9 | 3.2 ± 1.0a | 3.7 ± 3.8a | 2.6 ± 0.8b | 2.4 ± 0.6b |
| Double support time | 8.0 ± 3.8 | 8.4 ± 4.4 | 9.7 ± 9.3a | 8.9 ± 6.3a | 7.6 ± 3.8 | 7.7 ± 3.9 |
Significance demarcation based on pairwise comparisons of the three levels of task
NWS self-selected walking speed, FWS self-selected fast walking speed
aDenotes ‘walking + texting’ condition differs significantly from the walking only condition (P < 0.05)
bDenotes ‘walking + talking on a phone’ condition differs significantly from the walking only condition (P < 0.05)