Lateral foot-movement times in sitting and standing postures

This study examined the effects of foot-side, sex, movement amplitude, and target width on lateral and nonvisually controlled foot-movement time with a reciprocal foot-tapping task in sitting and standing postures. 9 male and 9 female right-foot dominant undergraduates (ages 20 to 25 years) with no reported physical and health problems with their lower limbs voluntarily participated. Analysis indicated foot-movement time in a standing posture was much faster than that in a sitting posture. Target width and movement amplitude had significant effects on foot-movement time, while the effects of foot-side and sex were not significant. Multiple regression models with inclusion of the significant factors were examined which should be useful in predicting foot-movement time required for different tasks in sitting and standing postures. Possible applications of the results may be made to the design of work and foot controls in terms of the related task factors for person-machine interfaces with two or more pedals.