Table 1 The mean (and standard deviation) FPA differences (in degrees) of the optical approach compared to the inertial approach
From: Foot progression angle estimation using a single foot-worn inertial sensor
Subjects | Gait | 0° FPA | ||
|---|---|---|---|---|
Normal | Toe-in | Toe-out | Calibration | |
S01 | − 5.22 (± 3.35) | − 2.39 (± 2.61) | − 6.58 (± 1.72) | − 3.99 (± 0.37) |
S02 | 0.01 (± 2.83) | 2.51 (± 2.86) | − 0.21 (± 1.41) | 1.38 (± 0.75) |
S03 | 1.85 (± 4.04) | 0.10 (± 3.43) | − 0.13 (± 1.87) | − 0.17 (± 2.82) |
S04 | 0.20 (± 3.43) | 0.31 (± 3.25) | − 1.45 (± 2.05) | 1.68 (± 2.86) |
S05 | 1.69 (± 2.67) | 5.15 (± 1.41) | 2.36 (± 1.36) | 4.71 (± 1.14) |