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. Author manuscript; available in PMC: 2014 Jul 26.
Published in final edited form as: J Biomech. 2013 Jun 5;46(11):1842–1850. doi: 10.1016/j.jbiomech.2013.05.002

Figure 4.

Figure 4

Location of the overall lead and trail limb minimum foot clearances by task region (RISE – front riser, FE – front edge of obstacle, TR – tread, BE – back edge of obstacle, EDGE – edge of level change or stair). Data is displayed as the percentage of the total number of overall minimum foot clearances that occurred within each region of the obstacle, step, stair or floor. All four regions were measured for the obstacle, while RISE, EDGE and TR were measured for level change and stair negotiation. For overground walking, all MFCs occurred over the digitized plane of the floor (GR) and were not included in the figure. There were no trail limb calculations for overground, descending level change or stairs (OG did not have a trail foot, while DLV and DST trail limb does not actually clear the step that it is on, but “rolls” off the tread or edge). For stair ascent and descent, the stair number is labeled over appropriate column.