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Κυριακή 5 Μαρτίου 2017

Reliability of Kinematic Measures in Subjects With Anterior Cruciate Ligament Deficiency During Dual-Task Walking

Publication date: Available online 4 March 2017
Source:Journal of Bodywork and Movement Therapies
Author(s): Salman Nazary-Moghadam, Mahyar Salavati, Ali Esteki, Behnam Akhbari, Sohrab Keyhani, Afsaneh Zeinalzadeh
ObjectiveTo 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).MethodsFourteen 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.ResultsICCs 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.ConclusionThe findings suggest that dual-tasking could also be applied reliably for the assessment of functional activities in subjects with and without ACLD.



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