Table 2. Mean shift and variability of ROM at the hip and knee joints, comparing published gyro-sensor-based statistics for ROM with those obtained in the present database analysis.
| (Unit:deg) | Variable | System | Mean±SD (before anomaly exclusion) | Mean±SD (after anomaly exclusion) |
|---|---|---|---|---|
| Hip-joint angle (+ flexion/—extension) | Max | OpenPose (R) | 27.00±12.40 | 23.88±8.08 |
| OpenPose (L) | 22.28±9.81 | 17.27±6.12 | ||
| MocapNET | 25.70±3.85 | 25.70±3.85 | ||
| Min | OpenPose (R) | -33.07±10.50 | -28.35±6.08 | |
| OpenPose (L) | -36.37±11.17 | -32.14±5.94 | ||
| MocapNET | -14.41±2.23 | -14.41±2.23 | ||
| ROM | Open Pose(R) | 60.06±14.86 | 52.23±8.96 | |
| Open Pose(L) | 58.65±14.60 | 49.41±7.74 | ||
| MocapNET | 39.88±3.22 | 39.88±3.22 | ||
| Knee-joint angle (+ flexion/—extension) | Max | Open Pose(R) | 64.20±21.83 | 58.17±9.63 |
| Open Pose(L) | 71.29±20.88 | 64.43±10.87 | ||
| MocapNET | 64.58 ± 5.21 | 64.58 ± 5.21 | ||
| Min | OpenPose (R) | -4.88±8.29 | -1.54±6.24 | |
| OpenPose (L) | -1.10±7.05 | 0.28±6.26 | ||
| MocapNET | -3.18±3.11 | -3.18±3.11 | ||
| ROM | OpenPose (R) | 68.34±19.74 | 59.71±11.08 | |
| OpenPose (L) | 72.39±18.99 | 64.15±11.98 | ||
| MocapNET | 67.20±4.66 | 67.20±4.66 |
ROM, range of motion; SD, standard deviation