Ambulatory characteristics of the visually disabled

Ground-reaction force patterns were examined in three groups: sighted, blindfolded, and blind. Fifteen subjects, aged 19 to 41, participated in the study. Ten walking trials were collected over a 5-meter distance. The data were analyzed by normalization for body weight, extraction of specific ground-reaction force parameters through force-time curve analysis routines, and averaging across the ten trials for each subject. Results of a one-way analysis of variance indicated that there were no significant differences when force patterns were analyzed in terms of mediolateral and vertical ground-reaction force components. Blind subjects were shown to have significantly greater (p < 0.05) maximum braking and propelling forces.