1. Faculty of Sport Sciences, University of Murcia, Murcia, Spain
2. Department of Physical Medicine and Nursing, University of Zaragoza, Zaragoza, Spain
3. Vision and Eye Research Unit, Anglia Ruskin University, Cambridge, UK
4. Faculty of Philology, University of Lodz, Łódź, Poland
5. Department of Pediatrics, Diabetology and Endocrinology, University Clinical Centre in Gdansk, Gdansk, Poland
6. Department of Pediatrics, Diabetology and Endocrinology, Gdansk Medical University, Gdansk, Poland
7. Department of Health Promotion, Gdansk University of Physical Education and Sport, Gdansk, Poland
8. Cambridge Centre for Sport and Exercise Science, Anglia Ruskin University, Cambridge, UK