Received: 7 February 2020
Accepted: 20 May 2020
First Online: 29 May 2020
Ethics approval and consent to participate
: Prior to participation, the subjects were fully informed on the research procedure and each gave written consent for the usage of their data for scientific purposes. The exercise protocol was assessed by the local Medical Ethics Committee of the Máxima Medical Centre, Veldhoven, The Netherlands, and ethical approval was waived.
: Not applicable.
: The authors declare that they have no competing interests.