Journal of Advances in Medical and Biomedical Research

en Correlation of Dietary Protein Intake with Body Composition and Physical Status in Patients with Knee Osteoarthritis Clinical Medicine Clinical Medicine مقاله پژوهشی Original Research Article Background and Objective: Little is known about the association between dietary protein intake and clinical manifestations in osteoarthritis (OA) patients. We aimed to determine the correlation between dietary protein intake and pain severity, functional status, and body composition indices in patients with knee OA. Materials and Methods: This cross-sectional study was performed on 220 OA patients, staged I to Ⅲon Kellgren and Lawrence scale. Patients were selected randomly via cluster sampling method from the health centers of Tabriz between October 2017 and October 2018. We estimated the participants' protein intakes using a semi-quantitative food frequency questionnaire. Western Ontario and McMaster Index (WOMAC) was used to measure the functional status. We used the Visual Analogue Scale to measure pain severity. A bioelectric impedance device measured the patients’ body composition. Results: Total dietary protein intake was 55.36±24.14 grams per day. Higher dietary total and animal-based protein intakes were associated with lower pain severity. There were reverse correlations between dietary protein intakes (total and animal-based) with the physical disability according to WOMAC total, WOMAC pain, and WOMAC stiffness scores in the subset of patients who didn’t meet the 75 percent of recommended dietary allowance. In these patients, higher total, plant-based, and animal-based protein intakes correlated with WOMAC functional scores. Higher total and animal-based protein intakes were associated with higher soft lean and lean body mass in women. Conclusion: Dietary protein intake needs to improve in knee OA patients, and dietary protein intake might be an intermediation objective in these patients. Body composition, Dietary protein, Functional status, Knee osteoarthritis, Pain 158 169 http://journal.zums.ac.ir/browse.php?a_code=A-10-5801-1&slc_lang=en&sid=1 Neda Dolatkhah neda_dolatkhah@yahoo.com 5200319475328460075587 5200319475328460075587 Yes Physical Medicine and Rehabilitation Research Center, Tabriz University of Medical Sciences, Tabriz, Iran Vahideh Toopchizadeh toopchi.v@gmail.com 5200319475328460075588 5200319475328460075588 No Physical Medicine and Rehabilitation Research Center, Tabriz University of Medical Sciences, Tabriz, Iran Azizeh Farshbaf Khalili azizeh_farshbafkhalili@yahoo.com 5200319475328460075589 5200319475328460075589 No Physical Medicine and Rehabilitation Research Center, Tabriz University of Medical Sciences, Tabriz, Iran Sanaz Emamizad semamizad@yahoo.com 5200319475328460075590 5200319475328460075590 No Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran Yaghoub Salekzamani ysz48@yahoo.com 5200319475328460075591 5200319475328460075591 No Physical Medicine and Rehabilitation Research Center, Tabriz University of Medical Sciences, Tabriz, Iran Negar Taleschian Tabrizi n.t.tabrizi@gmail.com 5200319475328460075592 5200319475328460075592 No Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran Maryam Hashemian hashemian3@yahoo.com 5200319475328460075593 5200319475328460075593 No Dept. of Biology, School of Arts and Sciences, Utica College, Utica, United States of America