Physical Demands in the Worst-Case Scenarios of Elite Futsal Referees Using a Local Positioning System. - Gemma Martinez-Torremocha; Javier Sánchez-Sánchez; Antonio Alonso-Callejo; Maria Luisa Martin-Sanchez; Carlos Serrano; Leonor Gallardo; Jorge Garcia-Unanue; Jose Luis Felipe (Sensors, 2023)