1. School of Healthcare Science; Manchester Metropolitan University; Chester Street Manchester M1 5GD UK
2. Institut de Myologie, UPMC UM 76, INSERM U 974, CNRS UMR 7215; Pitle-Salpetriere Hospital; 47-83 Boulevard de l'Hopital 75013 Paris France
3. Istituto di Anatomia Patologica, Dipartimento di Scienze Mediche, Chirurgiche e della Salute; University of Trieste, Cattinara Hospital; Strada di Fiume 447 34149 Trieste Italy
4. Physiotherapy & Sports Science, Health Sciences Centre; School of Public Health; Belfield Dublin 4 D04 V1W8 Ireland
5. Division of Medical Sciences & Graduate Entry Medicine, School of Medicine, Faculty of Medicine & Health Sciences, MRC-ARUK Centre of Excellence for Musculoskeletal Ageing Research, Derby Royal Hospital; University of Nottingham; Uttoxeter Road Derby DE22 3DT UK
6. AP-HP-Centre de Référence de Pathologies Neuromusculaire Paris Est-Institut de Myologie; Paris France
7. Lithuanian Sports University; 6 Sporto St LT-44221 Kaunas Lithuania