Many daily activities require people to complete another task while walking. The purpose of this study was to analyze the change of kinesia and biomechanics of the subjects with Parkinsonism when perform another tasks during walking / dual tasking.This research is an observational analytic research with cross sectional design. Subjects were classified into two different groups. The first group consisted of 14 subjects with Parkinsonism, and the second group consisted 14 age-matched healthy subjects (control). Gait performance was measured under two different conditions: (1) preferred walking (single task) and (2) walking while answering questions from telephone (dual task). Gait cycle time, gait cycle length, gait velocity, angkle joint angle, and freezing of gait episode were examined with Kinovea. Our results showed that there were no significant differences between control subjects for all gait variables. However, there were significant differences in all dual-task-related gait variables (P < 0, 05) in Parkinsonism subjects compared with single task. The findings of this study suggest that subjects with Parkinsonism have difficulty performing another task while walking / dual tasking and recommend for planning physiotherapy to improve the quality of life of the Parkinsonism.
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