1. Department of Physical Education & Sport Science, University of Thessaly, Karyes, 421 00 Trikala, Greece
2. Department of Kinesiology, Institute for Research and Technology-CERTH, Thessaly, Karyes, 421 00 Trikala, Greece
3. School of Sports, Performing Arts & Leisure, University of Wolverhampton, Wolverhampton WV1 1LY, UK
4. Department of Physical Education & Sport Science, National and Kapodistrian University of Athens, 172 37 Athens, Greece
5. Department of Nephrology, School of Medicine, University of Thessaly, 411 10 Larissa, Greece
6. Faculty of Sport and Health Sciences, University of St Mark and St John, Plymouth PL6 8BH, UK