Figure 2 | Scientific Reports

Figure 2

From: A synthetic kinematic index of trunk displacement conveying the overall motor condition in Parkinson’s disease

Figure 2

Trunk displacement index (TDI). (a). The graphical representation of a step of the TDI calculation. The horizontal line is the mean position of the centre of mass on the x axis (COM mean). The waving line is the trajectory of the trunk. The arrows represent the distance between trunk trajectory and COM mean in each frame. (b). The box plot (see Fig. 1 caption for explanation of box plot) of the TDI comparison among healthy controls (HC), individual with Parkinson’s disease before L-DOPA intake (PDoff) and individual with Parkinson’s disease after L-DOPA intake (PDon). (c). The correlation between TDI and Unified Parkinson's Disease Rating Scale Part III score (UPDRS-III), including PDoff and PDon. Significance p value: *p < 0.05, **p < 0.01, ***p < 0.001.

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