About the Authors

Joost de Winter

j.c.f.dewinter@tudelft.nl

Affiliation Department of BioMechanical Engineering, Delft University of Technology, Delft, The Netherlands

Riender Happee

Affiliation Department of BioMechanical Engineering, Delft University of Technology, Delft, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: JW RH. Contributed reagents/materials/analysis tools: JW RH. Wrote the paper: JW RH.