Tarbiat Modares University International Journal of Musculoskeletal Pain Prevention 2476-5279 9 3 2024 07 01 Knee and Hip Kinematics during Gait following 12- week Conservative Interventions in a Case with Lower Limb Stiffness 1065 1069 20252 10.22034/IJMPP.9.3.1065 EN Fateme Khorramroo Department of Sport Injuries and Biomechanics, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran. Seyed Hamed Mousavi Department of Sport Injuries and Biomechanics, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran. 0000-0003-2906-2101 Hooman Minoonejad Department of Sport Injuries and Biomechanics, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran. 0000-0002-5983-8102 Journal Article <strong>Aims:</strong> This case study aims to manage the post-operative complications in a patient with excessive ankle stiffness using Instrument Assisted Soft Tissue Mobilization (IASTM) and Faradic Electrical Stimulation (FES) and investigate the effects on knee and hip kinematics during gait.<br> <strong>Method and Materials:</strong> A 41-year-old female with post-operation complications including decreased right ankle Range of Motion (ROM) and strength, underwent a 12-week of IASTM and FES. Gait analysis was performed before and after the intervention. Knee and hip angles and velocities in 3 dimensions were measured using a motion analysis system before and after the intervention.<br> <strong>Findings:</strong> Results showed increased knee adduction, decreased peak knee external rotation at the late swing phase, increased peak frontal plane knee velocity, frontal and transverse plane hip excursion, and peak velocities in the transverse and frontal plane.<br> <strong>Conclusion:</strong> A 12-week IASTM and FES can improve knee and hip gait mechanics in a patient with excessive ankle stiffness. https://ijmpp.modares.ac.ir/article_20252_25411c7a6117dca4fca5d84c4ee09df5.pdf