Abstract
Abstract The emotional and psychological benefits of musical experiences for human behavior are well documented by research in music therapy and psychology of music. It is also documented that music and rhythm have been utilized universally to accompany motor activity. The effect, however, of music and rhythm on motor activity including mechanics of hemiparetic gait has not been investigated. The purpose of this study was to investigate the effect of auditory rhythmic cuing on gait kinematic parameters of stroke patients. Eight subjects were studied over three trials. For each trial, a baseline walk without rhythm and a walk with rhythm as pacemaker, matched to the step cadence of the baseline walk, was videotaped with two 60 Hz videocameras. Three dimensional coordinates of ten body points were calculated by combining the images of the two cameras utilizing the direct linear transformation (DLT) method. The raw position data was digitally smoothed before being submitted to further analysis. Repeated measures ANOVA and paired t-tests revealed positive modifications in gait patterns due to musical rhythmic cues; specifically: (1) the stride lengths and hip joint range of motion (ROM) of the affected/non-affected sides became more symmetrical; and (2) center of mass (CM) vertical displacement decreased. These results support the presence of an entrainment effect of auditory rhythmic cuing on hemiparetic gait.
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