Fig 1.
Schematic of the experimental set-up.
Fig 2.
Representation of foot placement and clearance parameters for the lead and trail foot during negotiation of the surface height change.
Table 1.
Visual search parameters as a function of phone task.
Data presented are the group mean (standard deviation).
Fig 3.
Relative number (a, top figure) and length (b, bottom figure) of fixations at the surface height change in each phone condition (group mean ± SE). Fig 3 top and bottom—No phone is significantly different to talk, read and write conditions. Fig 3 bottom—Talk is also significantly different to read and write conditions.
Table 2.
Gait parameters as a function of phone task condition.
Data presented are the group mean (standard deviation).
Fig 4.
Lead vertical toe clearance when negotiating the surface height change under different phone conditions (group mean ± SE).
Write condition is significantly different to no phone, talk and read conditions.