Applied Sports, Technology, Exercise and Medicine Research Centre, College of Engineering, Swansea University, Bay Campus, Swansea, SA1 8EN, UK. m.mcnarry@swansea.ac.uk. School of Human Sciences, University of Western Australia, Perth, 6009, Australia. Swansea University Medical School, Swansea University, Swansea, SA2 8PP, UK. Applied Sports, Technology, Exercise and Medicine Research Centre, College of Engineering, Swansea University, Bay Campus, Swansea, SA1 8EN, UK.