Salman Nazary-Moghadam1, Mahyar Salavati2, Ali Esteki3, Behnam Akhbari4, Sohrab Keyhani5, Afsaneh Zeinalzadeh6. 1. Department of Physical Therapy, School of Paramedical Sciences, Mashhad University of Medical Sciences, Vakil abad Blvd, Bahonar Blvd, Pardis Campus, Mashhad, Iran. Electronic address: Nazary_salman@yahoo.com. 2. Department of Physiotherapy, University of Social Welfare and Rehabilitation Sciences, Koodakyar Ave, Daneshjoo Blvd, Evin, Tehran, Iran. Electronic address: mahyarsalavati@gmail.com. 3. Department of Biomedical Engineering and Physics, School of Medicine, Shahid Beheshti University of Medical Sciences, Koodakyar Ave, Daneshjoo Blvd, Evin, Tehran, Iran. Electronic address: aesteki@sbmu.ac.ir. 4. Department of Physiotherapy, University of Social Welfare and Rehabilitation Sciences, Koodakyar Ave, Daneshjoo Blvd, Evin, Tehran, Iran. Electronic address: behnamakhbari@gmail.com. 5. Orthopedic Department Chair, Akhtar Orthopedic Hospital, Shahid Beheshti University of Medical Sciences, Bustan Street, Pole rumi St., Shariati Street, Teheran, Iran. Electronic address: Sohrab_keyhani4@yahoo.com. 6. Department of Physical Therapy, School of Paramedical Sciences, Mashhad University of Medical Sciences, Vakil abad Blvd, Bahonar Blvd, Pardis Campus, Mashhad, Iran. Electronic address: A_zeinalzadeh@yahoo.com.
Abstract
OBJECTIVE: To define the throughout within- and between-day reliability of gait parameters in single - and dual-task conditions in subjects with and without anterior cruciate ligament deficiency (ACLD). METHODS: Fourteen subjects with ACLD and 14 healthy subjects completed a walking task on a treadmill with three levels of velocity (self-selected, high and low), with or without performing an auditory Stroop task over two sessions each 3-5 days apart. The gait kinematic parameters, including maximum and minimum hip flexion, total hip range of motion, maximum and minimum knee flexion and total knee range of motion were recorded using a motion analysis system. The intraclass correlation coefficient (ICC), the standard error of measurement (SEM), and the coefficient of variation (CV) were used to determine inter- and intrasession reliability of kinematic and cognitive measures. RESULTS: ICCs for ACLD group in dual-task and single task conditions ranged between 0.50 to 0.93 and 0.53 to 0.93, respectively. ICC values for healthy groups in dual-task and single task conditions ranged between 0.36 to 0.90 and 0.39 to 0.87, respectively. When comparing relative reliability across kinematic variables in different velocities, ICC values were generally identical in all three levels of velocity. CONCLUSION: The findings suggest that dual-tasking could also be applied reliably for the assessment of functional activities in subjects with and without ACLD.
OBJECTIVE: To define the throughout within- and between-day reliability of gait parameters in single - and dual-task conditions in subjects with and without anterior cruciate ligament deficiency (ACLD). METHODS: Fourteen subjects with ACLD and 14 healthy subjects completed a walking task on a treadmill with three levels of velocity (self-selected, high and low), with or without performing an auditory Stroop task over two sessions each 3-5 days apart. The gait kinematic parameters, including maximum and minimum hip flexion, total hip range of motion, maximum and minimum knee flexion and total knee range of motion were recorded using a motion analysis system. The intraclass correlation coefficient (ICC), the standard error of measurement (SEM), and the coefficient of variation (CV) were used to determine inter- and intrasession reliability of kinematic and cognitive measures. RESULTS: ICCs for ACLD group in dual-task and single task conditions ranged between 0.50 to 0.93 and 0.53 to 0.93, respectively. ICC values for healthy groups in dual-task and single task conditions ranged between 0.36 to 0.90 and 0.39 to 0.87, respectively. When comparing relative reliability across kinematic variables in different velocities, ICC values were generally identical in all three levels of velocity. CONCLUSION: The findings suggest that dual-tasking could also be applied reliably for the assessment of functional activities in subjects with and without ACLD.
Authors: Afsaneh Zeinalzadeh; Salman Nazary-Moghadam; Sayyed Hadi Sayyed Hoseinian; Mohammad H Ebrahimzadeh; Esmaeel Imani; Samira Karimpour Journal: Arch Bone Jt Surg Date: 2021-01