Fig. 1From: The reliability of non-invasive biophysical outcome measures for evaluating normal and hyperkeratotic foot skinHeel fissure images. The first image is a view of the heel fissure before marking and the second is a view captured during length measurement and marking of the centre of the fissure NB: The line drawn on this diagram is used to describe how the centre of the heel fissure was identified. During testing a single dot or small cross was marked on the area to indicate the centre of the fissureBack to article page