Table 2.
Validity of G&B App outcomes against clinical measures.
| Task | Outcome | Clinical Outcome | r [95% CI] | Correlation |
|---|---|---|---|---|
| HF | Walking speed (m/s) | BBS | 0.55 [0.38, 0.69] | (+)Adequate |
| Walking speed (m/s) | TUG | −0.7 [−0.79, −0.57] | (−)Adequate | |
| Gait symmetry (%) | BBS | 0.27 [0.05, 0.46] | (+)Poor | |
| Gait symmetry (%) | TUG | −0.43 [−0.59, −0.24] | (−)Poor | |
| Step length (m) | BBS | 0.45 [0.26, 0.6] | (+)Poor | |
| Step length (m) | FRT | 0.22 [0.01, 0.42] | (+)Poor | |
| Step length (m) | TUG | −0.56 [−0.69, −0.39] | (−)Adequate | |
| Step time (s) | BBS | −0.47 [−0.62, −0.28] | (−)Poor | |
| Step time (s) | TUG | 0.58 [0.42, 0.71] | (+)Adequate | |
| Step time variability (%) | BBS | −0.26 [−0.45, −0.05] | (−)Poor | |
| Step time variability (%) | TUG | 0.31 [0.1, 0.49] | (+)Poor | |
| Step time asymmetry (%) | FRT | 0.23 [0.02, 0.43] | (+)Poor | |
| HT | Walking speed (m/s) | BBS | 0.51 [0.33, 0.66] | (+)Adequate |
| Walking speed (m/s) | TUG | −0.67 [−0.77, −0.53] | (−)Excellent | |
| Gait symmetry (%) | BBS | 0.41 [0.21, 0.57] | (+)Poor | |
| Gait symmetry (%) | TUG | −0.47 [−0.62, −0.28] | (−)Poor | |
| Step length (m) | BBS | 0.53 [0.36, 0.67] | (+)Adequate | |
| Step length (m) | TUG | −0.58 [−0.7, −0.41] | (−)Adequate | |
| Step time (s) | BBS | −0.26 [−0.45, −0.05] | (−)Poor | |
| Step time (s) | TUG | 0.5 [0.32, 0.65] | (+)Adequate | |
| Step length variability (%) | BBS | −0.38 [−0.55, −0.18] | (−)Poor | |
| Step length variability (%) | TUG | 0.33 [0.12, 0.51] | (+)Poor | |
| Step time variability (%) | BBS | −0.47 [−0.63, −0.29] | (−)Poor | |
| Step time variability (%) | TUG | 0.46 [0.28, 0.62] | (+)Poor | |
| Step length asymmetry (%) | BBS | −0.37 [−0.54, −0.17] | (−)Poor | |
| Step time asymmetry (%) | BBS | −0.31 [−0.49, −0.1] | (−)Poor | |
| Step time asymmetry (%) | TUG | 0.23 [0.01, 0.42] | (+)Poor |
CI = confidence intervals. (+) = positive correlation; (−) negative Correlation.