The Lee Silverman Voice Treatment Improves Vocal Loudness in Early Persian-speaking Patients With Parkinson’s Disease

سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 102

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شناسه ملی سند علمی:

JR_IRJU-19-1_009

تاریخ نمایه سازی: 5 دی 1402

چکیده مقاله:

Objectives: In the early stages, most Parkinson’s patients display some degrees of voice and speech disorders. Speech disorders can negatively affect individuals’ social interactions and life; thus, treatment plans for the disorders in the early stages might be further beneficial than the late stages. Therefore, we aimed to investigate the effects of an intervention on Persian-speaking patients with early mild Parkinson’s Disease (PD). The intervention was the Lee Silverman Voice Treatment (LSVT). Methods: This was an interventional study and included ۲۳ patients with PD. The study participants were randomly assigned into one of two groups; ۱۳ patients in the intervention group (PD-I), and ۱۰ in No-Intervention (PD-NI) group. Normal Persons (NP) or the control group included ۱۳ healthy participants who were neurologically normal and presented no speech and voice disorders. Besides, they were matched with the PD-I group concerning education, age, gender. Results: There was a significant impairment in Maximum Phonation Time (MPT), vocal loudness in vowel /a/, in reading, and during a monologue speech in the PD group, compared with the NP group (P≤۰.۰۰۱). The LSVT resulted in a significant improvement in all measures in the PD-I group (P≤۰.۰۰۱); however, no significant change was observed between the PD-I and PD-NI groups’ scores in first assessment (P≥۰.۲۰۱). In contrast, the PD-NI group’s results in all measurements of final assessment were significantly lower than those in the PD-I (P≤۰.۰۰۱) and NP (P≤۰.۰۰۱) groups. The MPT also exhibited a considerable improvement in the PD-I group, compared with the controls. Discussion: The LSVT, as a therapeutic technique based on the motor learning theory was beneficial in improving the vocal loudness of Persian-speaking patients with PD in the early stages of their disease.

نویسندگان

Younes Amiri Shavaki

Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.

Arezoo Saffarian

Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.

Gholam Ali Shahidi

Movement Disorders Clinic, Hazrat Rasool Hospital, Iran University of Medical Sciences, Tehran, Iran.

Mohammad Reza Keyhani

Department of Basic Sciences, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.

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