20.500.12556/RUL-176814 Effects of peripheral fatigue of ankle evertors on force sense and electromyographic activity in healthy subjects Background: Ankle proprioception is essential for dynamic stability, but fatigue may impair force sense and neuromuscular control, increasing injury risk. Their relationship remains unclear. Objective: To examine the effects of ankle evertor fatigue on force sense accuracy and variability, along with associated changes in muscle activation. Methods: Twenty-four healthy participants completed a force-matching task in ankle eversion at 25% and 50% of MVIC before and after a fatigue protocol. Force sense was assessed by constant, absolute, and variable error and coefficient of variation. RMS amplitude was calculated for the peroneus longus, tibialis anterior, soleus, and gastrocnemius medialis, and median frequency only for the peroneus longus. Results: With fatigue, there was a 34.7% reduction in MVIC torque (p < 0.05). During force-matching tasks, variable error at 50% MVIC and coefficient of variation without visual feedback at 25% and 50% MVIC increased (p < 0.01), EMG amplitude of all muscles substantially increased (p < 0.05), and median frequency of the peroneus longus decreased (p < 0.001). Conclusion: Peripheral fatigue of ankle evertors increases variability in muscle force output, which is accompanied by compensatory motor unit recruitment during force matching, resulting in elevated variability. episiotomy external anal Sphincter innervation zones surface electromyography fecal incontinence true false true Angleški jezik Ni določen Članek v reviji 2025-12-11 09:45:00 2025-12-11 09:45:01 2025-12-24 03:58:27 0000-00-00 00:00:00 2025 0 0 8 str. art. 103083 Vol. 85 2025 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 2025-01-01 615.82/.84 1873-5711 10.1016/j.jelekin.2025.103083 260941059 1-s2.0-S1050641125001099-main.pdf 1-s2.0-S1050641125001099-main.pdf 1 8314A870FE8E63FE67A1A39F7385C631 dc1ecf99e13c3fe4be0b8255d655c1868816314a3ff29691abc461d26d4cd605 91987165-d66d-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=223391 https://www.sciencedirect.com/science/article/pii/S1050641125001099 1 433c500b-d66d-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=223390 Zdravstvena fakulteta Medicinska fakulteta 0 0 0