Correction to: Scientific Reports https://doi.org/10.1038/s41598-020-67032-3, published online 23 June 2020


The original version of this Article contained an error in Figure 1, where the width dimension of the testing apparatus was incorrect.


The original Figure 1 and accompanying legend appear below.

Figure 1
figure 1

Experimental setup. Able-bodied volunteers and below-knee amputees performed a horizontal ladder rung walking test while blindfolded. Ladder rungs were randomly spaced 19, 28.5, 38, or 47.5 cm apart and the arrangement changed after every trial. Participants used a single handrail that ran alongside the ladder for support. Videos were recorded with three cameras, two alongside the ladder and one at the end.

Full size image

As a result, in the Materials and methods, under the sub-heading ‘Experimental design’,


"The testing apparatus was constructed out of wood and measured 6.9 m long by 0.3 m wide, as depicted in Fig. 1."


now reads:


"The testing apparatus was constructed out of wood and measured 6.9 m long by 0.59 m wide, as depicted in Fig. 1."


The original Article has been corrected.