RT journal article T1 Effects of Acute Fatigue on Balance Control of Alpine Skiing Athlete A1 Riscart López, Javier A1 Jiménez Herranz, Elena A1 Mendoza Puente, Isabel A1 Rosety Rodríguez, Miguel Ángel A1 Bastos García, Jorge A1 Rodríguez Huguet, Manuel A1 Ramos Álvarez, Juan José A2 Cirugía A2 Didáctica de la Educación FísicaPlástica y Musical A2 Enfermería y Fisioterapia A2 Medicina K1 ski K1 balance control K1 postural balance K1 fatigue K1 maximum effort AB Background: Great physical requirements are necessary to maintain the entirebody in a streamlined and aerodynamic position during downhill skiing. Balance controlhas an important role in alpine skiing and depends on muscle endurance and strength. Thecentral processing of proprioception and the force capacity of muscle are altered by fatigue.The objective of this study was to assess the effects of fatigue and visual input on balancecontrol in alpine skiing. Methods: Eleven male professional skiers participated in the study.Balance control with eyes open and eyes closed was assessed before and after performinga maximal effort specific alpine ski test. Variables: the total travel distance (TTD) (mm),radial area (RA) (mm2), ratio between TTD and RA (TTD/RA) (1/mm), mean center ofpressure (COP) velocity (total length of the COP path per unit time) (mm/s), the meanmediolateral (ML) COP oscillation velocity (Lat_Vel) (mm/s), the mean anteroposterior(AP) COP oscillation velocity (AP_Vel) (mm/s), mean ML (MLD) (mm) and mean AP(APD) (mm) displacements of the COP and the distance from the ordinate origin (meanX and mean Y) (theoretical point where the COP should be) to the point at which theCOP is located, and heart rate were measured. Results: The results showed differencesin the variables related to postural control and balance before and after the stress test(p = 0.002–0.037). However, no differences were found when the results obtained with openand closed eyes were compared. Conclusions: The results showed that performance inalpine skiing could be negatively affected by fatigue. However, the dynamic parametersare not decreased by visual input during muscle fatigue. PB MDPI SN 2075-1729 YR 2025 FD 2025-04 LK http://hdl.handle.net/10498/38023 UL http://hdl.handle.net/10498/38023 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 09-nov-2026