Effects of Tele Music-based Voice Intervention Protocol on vocal fatigue, voice impairments, voice-related physical symptoms, and emotional well-being of school teachers in Malaysia

School teachers (ST) constitute the largest group of professional voice users. In the teaching profession, teachers have a higher risk of developing voice discomfort and problems compared to the general population. Numerous research studies have documented the positive effect of singing on voice problems since voicing and singing share the same physiological mechanism. Although singing has been observed and shown to improve the functional use of the voice, there have been no studies that reported the efficacy of singing on school teachers' voice in Malaysia. Method: This study investigates the effect of a Tele Music-based Voice Intervention Protocol (Tele MusVIP) on the vocal fatigue, voice impairments, voice-related physical symptoms, and emotional well-being of school teachers in Malaysia. A quantitative approach was used for the investigation. The study utilized an interventional, one-group, repeated measure research design. Purposive sampling was selected with a targeted population of 39 full-time school teachers across different states in Malaysia. The school teachers received two hours of singing sessions weekly for 12 consecutive weeks. The tools used for the research were the Vocal Fatigue Index (VFI) and Voice Symptoms Scales (VoiSS), and the measurements were taken at pre-, co-, and post-intervention. The data was statistically analyzed through one-way repeated measures ANOVA using SPSS. At the same time, pre- and post-intervention interviews were conducted to find out the school teachers' perception of their voice and voice-related problems, as well as their perception of Tele MusVIP. Results: Statistical tests revealed positive significant outcomes on all voice parameters in this study (p ≤ 0.05). Empirical data on school teachers' perception of their voice and voice-related problems, as well as their perception of Tele MusVIP, were documented. Implications: The results suggest that Tele MusVIP is effective in improving school teachers' voices. The evidence obtained from the study suggests that Tele MusVIP is a feasible and effective intervention for school teachers, and it potentially can be used as an alternative to traditional voice care programs to incorporate these principles and provide an alternative to traditional voice care programs.

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