多重課題条件下の歩行における課題が歩行に与える影響

―【第１報】併進運動への影響―

抄録

The aim of this study was to investigate body sway in 3 axial directions while walking under multitask conditions to assess the effects of task type and aging associated with the risk of falling. Body sway was measured with a single 3-axis acceleration sensor attached to the hip. 10 healthy young and 11 elderly individuals participated the experiment. The tasks were walking, visual, auditory and calculation, we combined these tasks and experimented. Significant differences in lateral body sway in condition 5 (visual, calculation and walking tasks) and sagittal body sway in condition 3 (auditory and walking tasks) were observed between elderly and young people. These results imply for elderly individuals that postural control is visually dependent and route changes based on sound prompts lead to excessive attentional load.