<![CDATA[Muscle weakness in stroke patients will affect muscle contraction. Muscle contraction due to reduced blood supply to the brain, thereby blocking the main nerves of the brain and spinal cord . Blockage ofa oxygen and nutrientsto the brain causes serious health problems because it can cause hemiparesis and even death . The occurrence ofa disturbances in the level ofa physical mobilization of patients is often caused by a movement in the form of bed rest. The ofa a weakened muscle condition associated with a lack ofa physical activity usually appear within a few days. Control ofa the brain to regulate muscle movement has decreased function resulting in reduced muscle mass. This studyiaims to determine the effectiveness ofa ROM (range of motion ) on muscle strength in stroke patients at the RoyaliPrima Hospital in Medan. This studyiusedia quasi-experiment with oneigroup pre-posttest. The instrument used is an observation sheet while the Wilcoxon test is used for testing. Prior to ROM training, most ofa the respondents ' strength was on a scale ofa 3 (67.9 %) and minority muscle strength was on a scale of 4 (10.7%). After doing ROM (Range of Motion) exercise there was an increase in muscle strength where the majority muscle strength on a scale ofa 4 was (45.5) and the muscle strength of the minority patient was on a scale ofa 5 (30.0%). There is an Effectiveness ofiROMi (Range of Motion) on Muscle Strength in Stroke Patients at the Royal Prima Hospital Medan in 2021 with p-value of 0.004.Keywords: ROM, Exercises , Muscle Strength]]>
