Table 3.
Correlation coefficient (r), Concordance correlation coefficients (rc), and Intraclass correlation coefficient (ICC) of gait parameters measured by Kinect and gold standard (Spatiotemporal Parameters).
| Outcome Measure | Clark et al. [5] | Behrens et al. [13] | Pfister et al. [16] | Mentiplay et al. [23] * | Xu et al. [19] | Geerse et al. [21] * | Clark et al. [15] **** | Vernon et al. [16] |
|---|---|---|---|---|---|---|---|---|
| Gait speed |
r = 0.95 rc = 0.93 |
r = 0.44 |
r = 0.99 rc = 0.90 |
ICC = 0.99 | r = 0.92 | r = 0.99 | ||
| Step time |
r = 0.82 rc = 0.23 |
r = 0.92 rc = 0.75 |
r = 0.77 rc = 0.75 |
ICC = 0.89 | ||||
| Stance time | - |
r = 0.57 rc = 0.37 |
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| Stride time |
r = 0.69 rc = 0.14 |
r > 0.80 |
r = 0.92 rc = 0.92 |
ICC = 0.96 | ||||
| double limb support time | - |
r = 0.24 rc = 0.10 |
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| Foot swing velocity |
r = 0.93 rc = 0.54 |
r = 0.79 rc = 0.11 |
r = 0.43 rc = 0.21 |
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| Speed variability | - |
r = 0.75 rc = 0.0 |
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| step width | - |
r = 0.94 rc = 0.0 |
r = 0.82 rc = 0.82 |
ICC = 0.65 | ||||
| medial-lateral and vertical pelvis displacement | - |
r = 0.45 rc = 0.0 |
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| Step length |
r = 0.99 rc = 0.97 |
r = 0.90 rc = 0.13 |
ICC = 0.99 | r = 0.86 | ||||
| Stride length |
r = 0.99 rc = 0.99 |
ICC = 0.99 | ||||||
| Cadence | ICC = 0.97 |
* Reported values refer to comfortable walking pace, **** Reported values refer to manually assessed time and affected limb.