1. a Department of Sport Sciences , University of Beira Interior , Covilhã , 6200-209 , Portugal
2. b CIDESD Research Center , Universidade de Trás-os-Montes e Alto Douro , Vila Real , Portugal
3. c Department of Management and Economics , University of Beira Interior , Covilhã , 6200-209 , Portugal
4. d CEFAGE Research Center , Universidade de Évora , Évora , Portugal