en طب فيزيكي و توانبخشي Physical Medicine and Rehabilitation پژوهشي Research <div style="text-align: justify;"><span style="font-size:12pt"><span style="font-family:&quot;Times New Roman&quot;,serif"><b><u><span style="color:#2f5496">Background & Objectives:</span></u></b> Although exercise is widely recommended as a first-line intervention for osteoarthritis (OA), the relative effectiveness of specific exercise modalities remains unclear. This study aimed to examine the effects of hydrotherapy on motor function and selected psychological health indicators in women diagnosed with knee osteoarthritis (KOA).</span></span><br> <span style="font-size:12pt"><span style="font-family:&quot;Times New Roman&quot;,serif"><b><u><span style="color:#2f5496">Materials & Methods:</span></u> </b>This quasi-experimental study employed a pre-test&ndash;post-test control group design and included 40 women with KOA (mean age = 56.5 years) who were selected through purposive sampling. Participants were assigned to either a hydrotherapy group (HG, n = 20) or a control group (CG, n = 20). The HG completed an eight-week hydrotherapy program based on the prescribed protocol, consisting of three 60-minute sessions per week. Outcome measures included the Osteoarthritis Research Society International (OARSI) physical function tests, the Visual Analogue Scale (VAS) for pain, the Tampa Scale of Kinesiophobia (TSK), and the 32-item Brunel Mood Scale (BRUMS). Data were analyzed using multivariate analysis of covariance (MANCOVA) in SPSS version 26, with statistical significance set at p < 0.05.</span></span><br> <span style="font-size:12pt"><span style="font-family:&quot;Times New Roman&quot;,serif"><b><u><span style="color:#2f5496">Results:</span></u></b> Following the intervention, the HG demonstrated significant reductions in the durations of the Timed Up and Go (TUG) test (ES = 0.89), the 40-Meter Walk (40MW) test (ES = 0.91), and the Stair Climb Test (SCT) (ES = 0.33) (p < 0.05). Moreover, the HG showed marked reductions in pain (F = 313.07, p = 0.002, ES = 0.61), kinesiophobia (F = 271.40, p = 0.001, ES = 0.89), and mood disturbance (F = 49.66, p = 0.001, ES = 0.27).</span></span><br> <span style="font-size:12pt"><span style="font-family:&quot;Times New Roman&quot;,serif"><b><u><span style="color:#2f5496">Conclusion:</span></u></b> Hydrotherapy significantly improved motor performance and psychological well-being in women with KOA. These findings support the integration of aquatic exercise as an effective therapeutic and preventive strategy for managing KOA.</span></span><br> &nbsp;</div> Hydrotherapy, Motor Function, Knee Osteoarthritis, Kinesiophobia 0 0 http://jabs.fums.ac.ir/browse.php?a_code=A-10-1932-3&slc_lang=en&sid=1 Zohreh Mohammadi Kamalabadi زهره محمدی کمال آبادی 100319475328460030851 0009-0008-9969-612X No Department of Sports Injuries and Corrective Movements, Is.C., Islamic Azad University, Isfahan, Iran گروه آسیب‌های ورزشی و حرکات اصلاحی، واحد اصفهان، دانشگاه آزاد اسلامی، اصفهان، ایران Allahyar Arabmomeni الله یار عرب مومنی H.momeni1350@gmail.com 100319475328460030850 100319475328460030850 Yes Department of Sports Sciences, Kho. C., Islamic Azad University, Khomeinishahr, Iran گروه علوم ورزشی، واحد خمینی‌شهر، دانشگاه آزاد اسلامی، خمینی‌شهر، ایران Khodayar Momeni خدایار مومنی 100319475328460030852 100319475328460030852 No Department of Sports Sciences, Is.C., Islamic Azad University, Isfahan, Iran گروه علوم ورزشی، واحد اصفهان، دانشگاه آزاد اسلامی، اصفهان، ایران