Here we compared the effect of ankle moment constraints (LesSchuh; a shoe with a narrow ridge along the length of the shoe's sole), on a single and a split-belt treadmill. To this end we considered the foot placement model as proposed by Wang and Srinivasan (2014), and used the R^2 of this model as an outcome measure. In addition, step width, stride frequency and toe-out angles have been computed. The results have been written up in our publication in the journal of biomechanics. Wang, Y., & Srinivasan, M. (2014). Stepping in the direction of the fall: the next foot placement can be predicted from current upper body state in steady-state walking. Biology letters, 10(9), 20140405.