743843.fig.002a
(a)
743843.fig.002b
(b)
Figure 2: (a) Age analysis for hip flexion in men. Piecewise linear regression s-segment model shows breaking at the age of 71 years. The rate of decline prior to 71 years is −0.19 degrees per year and −1.16 degrees per year thereafter. ( of fit ). (b) Age analysis for hip flexion in women. Piecewise linear regression s-segment model shows breaking at the age of 86 years. The rate of decline prior to 86 years is −0.66 degrees per year and −2.67 degrees per year thereafter. ( of fit ).