Figure 7
Visualization of the multiple regression analysis performed in order to provide a more general framework for the determination of the potential advantage due to the use of RSPs during the take-off step. (a) 3D representation of the performed multiple regression analysis using only non-amputee data as input. Different colours represent individual performance from different athletes/sources in the literature39,40. Vertical lines indicate residuals. The frequency distribution of these residuals is shown in (b). A normal distribution using the mean and standard deviation of the non-amputee residuals is plotted, next to a kernel density function calculated using the same input. The similarity between these two frequency distributions shows how well the residual data follows a normal distribution. Vertical arrows indicate individual performances of selected athletes, providing the jump distances achieved in brackets.
