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KMID : 1036820190240030814
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Communication Sciences & Disorders
2019 Volume.24 No. 3 p.814 ~ p.826
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Effect of Online and Offline Voice Therapy Programs in Patients with Hyperfunctional Voice Disorder: A Case Study
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Lee Ha-Na
Yoo Jea-Yeon
Park Jun-Hee
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Abstract
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Objectives: Voice therapy aims to produce better voice quality by changing voice behavior. Patients are required to constantly practice and change their behavior every day. Voice therapy using smart phones not only encourages voice training in daily life, but also provides objective data during training. We investigated whether online and offline voice therapy programs using smartphones are effective for improvement of voice disorders.
Methods: The present study was conducted on five patients with hyperfunctional voice disorder. Voice therapy was performed using vocal aerobic treatment (VAT). Offline VAT was performed once a week, and online VAT was performed more than once a week. Voice evaluations were achieved via acoustic evaluation, aerodynamic evaluation, and subjective voice evaluation before and after therapy.
Results: The acoustic evaluation results showed that the Jitter, Shimmer and NHR decreased after therapy, while frequency range (Hz) and semitone increased. Aerodynamic evaluation illustrated increased expiratory volume (FVC), maximum phonation time (PHOT) and improved respiratory function related to phonation. Subjective voice evaluation demonstrated that the degree of voice disorder was reduced compared to that before the therapy.
Conclusion: The online and offline voice therapy programs were found to be effective in improving the F0 and voice quality of voice disorder patients as well as respiratory function related to phonation, and also in increasing the F0 range. In future studies, it is necessary to study the efficacy of online and offline voice therapy programs in a wide range of patients. Also, online program development and application of voice therapy techniques used in evidence-based clinical studies are suggested to be actively conducted.
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KEYWORD
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Home voice trainer, Online voice therapy, Vocal aerobic treatment, Voice therapy, Voice disorder
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