IRCT20230528058315N3 IRCT 2025-08-12 Hamedan University of Medical Sciences The immediate effect of the novel spring-damper ankle-foot orthosis on margin of stability of affected and unaffected limbs during walking of patients diseased to MS Evaluation of the immediate effect of the novel spring-damper ankle-foot orthosis on margin of stability of affected and unaffected limbs during walking of patients diseased to multiple sclerosis with drop foot 2025-09-23 anticipated 12 Complete https://irct.ir/trial/85206 interventional Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Supportive. N/A Multiple Sclerosis. Intervention group: Each participant will be evaluated under two conditions: wearing shoes on both sides, and wearing a shoe on the unaffected side along with the new spring-damper orthosis on the affected side, with the evaluation order randomized and a 5-minute rest period between conditions. Kinematic assessment will involve evaluating center of mass (COM) displacement velocity by tracking a sacral marker using a Vicon motion analysis system equipped with six infrared cameras recording at 120 Hz, while two Kistler force plates sampling at 1200 Hz will be used to assess plantar center of pressure (COP) and COM, with synchronized data collection from both the motion capture system and force plates, all conducted at the Mofaghian Research Center in Tehran. There is no control group.. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information