**3. Results**

A total of twenty-four participants were recruited with their demographics charateristics detailed in Table 1.

Results of the two-way ANOVA are shown in Table 2. A statistically significant difference was observed in the angle (*p* < 0.001) and average angular velocity (*p* < 0.022) for the System factor, i.e., Elite and DYSKIMOT lead to different means. Neither the status factor nor the interaction effects lead to statistically significant differences.

**Table 2.** Results of the two-way ANOVA performed on the parameters. *p* values are given for the differences between Elite and DYSKIMOT (System), between DP and NDP (Status) and for the interaction effect System x Status. *p* values lower than 0.05 are given in bold font.


The results of Passing–Bablok regressions are shown in Table 3. The slopes were close to 1, with the best agreemen<sup>t</sup> observed for the peak angular velocity, and Pearson's coefficients range from 0.431 to 0.922, i.e., there is a moderate to excellent linear correlation between DYSKIMOT and Elite results. The agreemen<sup>t</sup> between both systems can be graphically appraised in Figure 8. Angles show the poorest linear correlation, resulting in a large uncertainty in the best fit (large 95% confidence interval). The other parameters show better linear correlation, and the best fit is known with better accuracy (smaller 95% confidence intervals).

**Table 3.** Results of Passing–Bablok regressions performed on the computed parameters. Slope and Offset are given with their 95% confidence intervals (between brackets).


**Figure 8.** Passing-Bablok regressions showing the individual parameters computed from the DYSKIMOT and Elite data (points): (**A**) Angle, (**B**) Peak angular velocity, (**C**) Peak angular deceleration, (**D**) Average angular velocity, (**E**) Peak angular acceleration. The regression line (solid line) is given and compared to the identity line (dotted line). The 95% confidence interval for the linear fit is also displayed (colored band).

The DTW distance (d) allows for an estimation of the closeness of DYSKIMOT and Elite systems for the whole time series, not only for selected valued. We obtained 5.16 ± 2.68, 8.82 ± 5.80, and 14.40 ± 7.14 for angle, angular velocity, and angular acceleration time series respectively. Typical traces are shown in Figure 9.

**Figure 9.** Typical plots of DTW matching between Elite (black solid lines) and DYSKIMOT (red dashed lines) analyzed for z-normalized data in one NDP (22 years, Male, NDI = 0, NRPS = 0) participant: (**A**) Angle, (**B**) Angular acceleration, (**C**) Angular speed. The DTW distance is added for completeness.
