[1] Univ Flores, Fac Phys Act & Sports, Buenos Aires, Argentina
[2] Leeds Beckett Univ, Carnegie Sch Sport, Leeds, England
[3] UCAM Univ Catolica Murcia, Res Ctr High Performance Sport, Murcia, Spain
[4] Nucleus High Performance Sport NAR, Sao Paulo, Brazil
[5] UCAM Univ Catolica Murcia, Fac Deporte, Murcia, Spain
[6] Rugby Football League, England Performance Unit, London, England
[7] Premiership Rugby, London, England
[8] Scotland Rugby Union, Sports Sci, Edinburgh, Scotland
[9] Univ Fed Sao Paulo, Dept Human Movement Sci, Sao Paulo, Brazil
[10] Univ South Wales, Pontypridd, Wales