Katherine Humphris1, http://orcid.org/0000-0002-7902-1837John Stephenson2, Vidya Kumaraswamy3 1 Department of Pathology, Leeds Teaching Hospitals NHS Trust, Leeds, UK 2 Allied Health Sciences, Sport and Exercise, University of Huddersfield, Huddersfield, Kirklees, UK 3 Department of Pathology, Calderdale and Huddersfield NHS Foundation Trust, Huddersfield, West Yorkshire, UK Correspondence to Dr John Stephenson, Allied Health Sciences, Sport & Exercise, University of Huddersfield,...