Article History
Received: 4 October 2017
Accepted: 13 November 2018
First Online: 24 November 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the ethics committee of the Center for Human Movement Sciences, University Medical Center Groningen and with the 1964 Helsinki declaration and its later amendments.
: Informed consent was obtained from all individual participants included in the study.