1. Institute of Biomedicine, School of Health Sciences, University of Aveiro, Aveiro, Portugal;
2. School of Health Sciences, University of Aveiro, Aveiro, Portugal;
3. Portugal Football School, Portuguese Football Federation, Oeiras, Portugal;
4. Physical Education Department, College of Education, United Arab Emirates University, Al Ain, United Arab Emirates;
5. Research Centre in Sports, Health and Human Development, CIDESD, Vila Real, Portugal; and
6. Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal.