Correction to: Scientific Reports, published online 03 June 2019

The original version of this Article omitted an affiliation for Hosam Alzahrani. The correct affiliations are listed below:

Discipline of Physiotherapy, Faculty of Health Sciences, The University of Sydney, Sydney, Australia.

Department of Physiotherapy, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia.

This has now been corrected in the HTML and PDF versions of the Article, and in the accompanying Supplementary Information file.