Figure 5

Effects of age on joint-based parameters of position sense. A, B, Variability observed at the shoulder ( A ) and elbow ( B ). C, Systematic shifts at the shoulder (grouped data). D, Systematic shifts at the elbow non-dominant arm. E , F , Absolute errors at the shoulder and elbow. Parameter values are plotted in their native, untransformed units. Values of the representative participants from Figure 3 are shown with Xs. Lines show the median (thick line), inter-quartile range (medium thickness lines), and central 95% confidence interval (thin lines) obtained from the regression analysis.