Investigation of Sarcopenia Severity in Patients With Parkinson's Disease

This study aimed to determine the prevalence of sarcopenia and dynapenia in Parkinson's disease patients, classified into early-stage (\<2.5) and moderate-stage (≥2.5) according to the Modified Hoehn and Yahr scale, and healthy controls using the ICF-based ISarcoPRM algorithm, and to examine the differences in regional muscle morphology, muscle strength, and physical performance between groups.This study was conducted as a cross-sectional research. The study included 43 Parkinson's disease patients aged 50-75 years, classified as stages 1-3 according to the Modified Hoehn-Yahr Scale, and 22 healthy individuals with similar demographic characteristics. Parkinson's disease patients were divided into two subgroups according to the Modified Hoehn-Yahr Scale: early stage (\<2.5) and intermediate stage (≥2.5). Demographic information of all participants was recorded, and clinical evaluations were performed. Parkinson's disease staging was assessed using the Modified Hoehn-Yahr Scale. Muscle mass was assessed using ultrasonography to measure anterior femoral muscle thickness. Muscle strength was measured by handgrip strength, and physical performance was assessed using a five-count sit-up test.