Table 2.
Mean absolute difference and relative difference between algorithm and reference for all parameters. Difference is calculated by algorithm—reference. Positive values indicate an overestimation of the real value by the algorithm; 25 trials with five subjects.
| n = 25 (5 Subjects) | Algorithm (±std) | Reference (±std) | Mean Absolute Difference (±std) | Mean Relative Difference% (±std) |
|---|---|---|---|---|
| Cadence (steps/min) | 86.7 (±13.2) | 86.1 (±12.5) | 1.1 (±1.0) | 0.6 (±1.5) |
| Distance from Strides (m) | 287.3 (±178.0) | 303.8 (±178.0) | 25.5 (±14.8) | −9.7 (±9.6) |
| Glide percentage (%) | 52.9 (±6.7) | 56.9 (±7.8) | 4.1 (±2.9) | −6.9 (±4.5) |
| Stride duration (s) | 1.41 (±0.22) | 1.42 (±0.21) | 0.01 (±0.01) | −0.83 (±1.2) |
| Stride length (cm) | 171.9 (±30.1) | 185.4 (±38.0) | 15.6 (±14.1) | −6.5 (±7.7) |
| Strides | 165.0 (±106.3) | 169.2 (±105.2) | 4.4 (±3.7) | −4.1 (±5.8) |
| Power (W) | 119.7 (±50.8) | 120.2 (±54.2) | 12.1 (±12.6) | −4.9 (±26.2) |
| Slope gradient (°) | 4.6 (±5.0) | 4.9 (±4.3) | 1.1 (±0.7) | −11.1 (±86.1) |