The Effectiveness of a Voice Program Based on LAX VOX to Reduce the Severity of Voice Disorders Among Children with Cerebral Palsy

Document Type : Original Article

Authors

1 Researcher, National Center for Educational Researches and Development, Faculty of Disability Sciences and Rehabilitation Zagazig University.

2 Proffesor of Phoniatrics, Faculty of Medicine, Ain Shams University

3 Faculty of Disability Sciences and Rehabilitation Zagazig University, Shaibet an Nakareyah, Zagazig 2, Egypt

Abstract

The study aims to reveal the effectiveness of a program based on LAX VOX to reduce the severity of voice disorders among children with Cerebral Palsy. The study relied on the quasi-experimental method. The study sample consisted of (20) children who suffer from voice disorders associated with cerebral palsy, and their ages ranged from (5:8) years, and they were divided into two groups, an experimental group consisting of (10) children, and a control group consisting of (10) children. The study used John Raven's Advanced Matrices, Voice disorders scale from the Auditory assessment scale for basic speech processes for children with dysarthria with cerebral palsy, A voice program based on LAX VOX to reduce the severity of dysarthria in children with cerebral palsy, The results of the study revealed that there were statistically significant differences (Z = -2.81, p = 0.01) between the mean scores of the two assessments, the pre and post assessments, in the experimental group in favor of the post assessment, There are statistically significant differences (Z = -2.25, p = 0.05) between the mean scores of the experimental and control groups on the post-assessment in favor of the experimental group, There are no statistically significant differences (Z=-1.00, p=0.01) between the mean scores of the two post and follow-up assessments in the experimental group. Based on the foregoing, the study concluded the effectiveness of the program based on the technique of semi-occluded vocal tract (LAX VOX) to reduce the severity of voice disorders in children with cerebral palsy.

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