1. Faculty of Sport Sciences and Physical Education, University of Coimbra (PCDEF.UC/IDAF), Portugal, mailing address: Estitdio Universititriode oimbra, Pavilhão, 3, 3040-156, oimbra, Portugal, e-mail address:
2. CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, mailing address: Estrada da Costa, 1499-002, Cruz Quebrada, Dafundo, Portugal, e-mail address:
3. Centre for Sports Engineering Research, Sheffield Hallam University, UK
4. FiDiPro Programme, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland, e-mail address:
5. Faculty of Sports Sciences and Physical Education, University of Porto, Portugal, mailing address: Rua Dr. PMcido Costa, 91 - 4200.450 Porto, Portugal, email address: