Funding for this research was provided by:
Prinses Beatrix Spierfonds (W.O16-20)
Received: 10 December 2020
Accepted: 20 April 2021
First Online: 21 May 2021
: This study was approved by the medical ethical committee of Arnhem–Nijmegen in the Netherlands (Registration Number NL58988.091.16). Informed consent was obtained from all participants and, in the cases where the participants were under 18 years of age, from their parents as well.
: Not applicable.
: We wish to disclose financial competing interests for the authors JH and PK. They both are employed by Yumen Bionics, the commercial organization that is further developing the prototype examined in this study. There was no financial contribution from Yumen Bionics for this project, however they provided us with the prototypes used in this study.