Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (SFRH/ BD/103445/2014)
Received: 12 June 2020
Accepted: 28 October 2020
First Online: 11 November 2020
Ethics approval and consent to participate
: Approval was granted by the School of Health and Life Sciences Research Ethics Committee of Glasgow Caledonian University (HLS/PSWAHP/17/147) and the Portuguese National Data Commission (CNPD n° 1760/ 2018). Participants gave written informed consent.
: Not applicable.
: Dr. Gordon Hendry is an Associate Editor UK of the Journal of Foot and Ankle Research. It is journal policy that editors are removed from the peer review and editorial decision-making processes for papers they have coauthored. Professor Dawn A. Skelton is a Director of Later Life Training, a not for profit training organisation delivering exercise training to health and fitness professionals in the UK and Europe. The remaining authors declare no conflicts of interest in relation to this work.