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Table 4 Results of correlation analysis between gait variables calculated from the motion capture and from the OpenPose pose tracking

From: Concurrent validity of human pose tracking in video for measuring gait parameters in older adults: a preliminary analysis with multiple trackers, viewing angles, and walking directions

Gait variable Eye-level camera Top camera
R p R p R p R p
Front view walks Back view walks Front view walks Back view walks
Individual steps Individual steps
Cadence 0.99  < 0.001 1.00  < 0.001 0.97  < 0.001 0.97  < 0.001
Step time 0.71  < 0.001 0.71  < 0.001 0.48  < 0.001 0.31  < 0.001
Step width 0.42  < 0.001 0.34  < 0.001 0.44  < 0.001 0.17 0.01
Step time CV 0.17 0.40 − 0.05 0.85 0.03 0.87 0.30 0.20
Step width CV 0.27 0.18 0.60  < 0.001 − 0.16 0.43 0.27 0.26
eMOS 0.30  < 0.001 0.09 0.17 0.27  < 0.001 0.03 0.68
Gait variable Eye-level camera Top camera
R p R p R p R p
Front view walks Back view walks Front view walks Back view walks
Mean of all steps Mean of all steps
Cadence 1.00  < 0.001 1.00  < 0.001 0.99  < 0.001 0.98  < 0.001
Step time 1.00  < 0.001 1.00  < 0.001 0.99  < 0.001 0.99  < 0.001
Step width 0.56 0.07 0.54 0.09 0.55 0.08 0.39 0.24
Step time CV 0.52 0.10 0.22 0.51 0.13 0.71 0.50 0.12
Step width CV 0.18 0.61 0.60 0.05 − 0.06 0.87 0.15 0.65
eMOS 0.17 0.78 0.79 0.02 − 0.25 0.63 0.30 0.43