title: Repeatability of lower limb three-dimensional kinematics in patients with stroke.
abstract: The within- and between-session repeatability of time-distance and sagittal plane kinematic gait parameters were evaluated in 20 hemiparetic patients with sub-acute stroke. A test-retest design was used in which the patients were tested during two sessions within a 2h period. Each session comprised three consecutive trials. The intraclass correlation coefficients (ICCs) for time-distance parameters ranged from 0.82 to 0.99. The within- and between-session repeatability of pelvis, hip, knee and ankle kinematic waveforms were high: the mean coefficient of multiple correlations (CMCs) ranged from 0.85 to 0.95. The within-session coefficient of variation (CV%) for time-distance parameters ranged from 3.9 to 14.1, whereas, between-session CV% ranged from 6.1 to 17.2, showing similar but higher variability. The within- and between-session CV% for sagittal plane kinematics of the paretic lower limb ranged from 3.6 to 32.4. The results indicate that time-distance parameters and sagittal plane gait kinematics of the paretic lower limb, measured by the Vicon 370 gait analysis system, are repeatable and can be used to assess treatment effects after stroke.
authors.affiliation: Department of Physical Medicine & Rehabilitation, Ankara University Faculty of Medicine, Ankara, Turkey. gunesyavuzer@hotmail.com
authors.forename: Gunes
authors.initials: G
authors.lastname: Yavuzer
authors.forename: Oznur
authors.initials: O
authors.lastname: Oken
authors.forename: Atilla
authors.initials: A
authors.lastname: Elhan
authors.forename: Henk J
authors.initials: HJ
authors.lastname: Stam
mesh_terms: D000843:Ankle Joint / Q000503:physiopathology; D001696:Biomechanical Phenomena; D001827:Body Height; D001835:Body Weight; D005260:Female; D005684:Gait / Q000502:physiology*; D020233:Gait Disorders, Neurologic / Q000503:physiopathology; D006621:Hip Joint / Q000503:physiopathology; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods; D007719:Knee Joint / Q000503:physiopathology; D035002:Lower Extremity / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010291:Paresis / Q000503:physiopathology; D010388:Pelvis / Q000503:physiopathology; D011187:Posture / Q000502:physiology; D016059:Range of Motion, Articular / Q000502:physiology; D020521:Stroke / Q000503:physiopathology*; D016138:Walking / Q000502:physiology