Impact of reduced frame rate on kinematic analyses in videofluoroscopic swallowing studies

Purpose: Videofluoroscopic Swallowing Study (VFSS) is considered the gold standard for evaluating swallowing physiology. However, as VFSS involves ionizing radiation, minimizing exposure is crucial. This study aimed to compare the accuracy of kinematic analyses performed at 25, 20, and 15 frames per second (fps) with those obtained at 30 fps.Methods: Twenty-four healthy adults (13 women, 11 men; mean age 23.96 ± 3.59 years) without dysphagia and with T-EAT-10 scores