1Department of Clinical Therapies, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland
2Musculoskeletal Services, Health at the Stowe, Central London Community Healthcare, NHS Trust, 260 Harrow Road, London W2 5ES, UK
3Department of Allied Health Professions and Midwifery, School of Health and Social Work, Wright Building, College Lane Campus, University of Hertfordshire, Hatfield AL10 9AB, Hertfordshire, UK