Figure 2

Effects of age and gender on gait indices of vertical and anteroposterior accelerations. Circles: mean value for the female participants; triangles: mean value for the male participants; error bars: standard error of the mean. Higher symmetry and regularity indices were observed for the younger participants when compared with the elderly participants of both genders. With regard to the gender difference, males showed less symmetry and regularity compared with females in the elderly groups.