en آسیب شناسی ورزشی و حرکات اصلاحی Sport injury and corrective exercises گزارش مورد case report <div style="text-align: justify;"><strong>Purpose</strong>: This research aims to investigate the effect of instrument-assisted soft tissue mobilization (IASTM) and Faradic electrotherapy (FES) on lower limb coupling during gait in a patient with excessive ankle stiffness.<br> <strong>Methods</strong>: The study was conducted on a single patient who was diagnosed with ankle stiffness, decreased muscle strength due to 3.5 years of immobilization of the ankle joint, and was experiencing difficulty in walking. The patient underwent a 12-week treatment program that included IASTM and FES. The lower limb kinematics were measured using a motion analysis system before and after the intervention and couplings were calculated for 3-dimensional ankle movement.&nbsp;<br> <strong>Results</strong>: The results of the study changed ankle-knee, ankle-hip sagittal and transverse, and knee-hip frontal and transverse plane coupling during different subphases of gait after the intervention. The observed coordination pattern in the subjects under investigation approached a level of similarity to that of healthy individuals in loading response (LR) and midstance (MS) for the ankle-knee sagittal plane.<br> <strong>Conclusion</strong>: The results of this study suggest that IASTM and FES can be used as effective interventions to lower limb coordination during gait in patients with post-operation complications. Further research on more patients is required.</div> Coordination, Vector coding electrical stimulation, Graston, Gait 331 338 http://ptj.uswr.ac.ir/browse.php?a_code=A-10-594-2&slc_lang=en&sid=1 Fateme Khorramroo negar_moj2004@yahoo.com 0000-0001-8018-7650 No Department of Sport Injuries and Biomechanics, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran. Seyed Hamed Mousavi Musavihamed@ut.ac.ir 0000-0003-2906-2101 Yes Department of Sport Injuries and Biomechanics, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran. Hooman Minoonejad h.minoonejad@ut.ac.ir 0000-0003-2906-2101 No Department of Sport Injuries and Biomechanics, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran.