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Fig. 3 | Arthritis Research & Therapy

Fig. 3

From: Organisation of the motor cortex differs between people with and without knee osteoarthritis

Fig. 3

Relative location of the peak motor cortex activation during the knee and ankle tasks. a Anatomical search territory for knee and ankle task peak activations: pink shaded voxels. b Group mean and standard error in the Y and Z planes are shown for the loci of peak activation for the osteoarthritis (OA) group during the knee (solid orange square) and ankle tasks (open orange s quare), and for the control group during the knee (blue solid square) and ankle (blue open square) tasks. c Relative location of the sites of peak activation during the knee and ankle tasks for individual participants in the OA (black) and control (white) groups. Note that the group mean loci of peak activation for the knee task is anterior to that for the ankle task for the OA group, but posterior to that for the ankle task for the control group. This relationship was also observed in the individual data for all but two participants in the OA group, and all but one participant in the control group; *p <0.01 for the between-group difference in the relationship between the knee and ankle loci of peak activation

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