High-speed efforts of elite association football referees in national and international matches - Amatori, S.; Helsen, W. F.; Baldari, C.; Serra, T.; Belli, A.; Guidetti, L.; Rocchi, M. B. L.; Sisti, D.; Perroni, F. (The Journal of Strength and Conditioning Research, 2024)
Keywords: sports game; soccer; referee; analysis; load; GPS; velocity; performance; training; USA; sport games; biological and medical sciences