Objectives:To assess the effectiveness of regular singing exercises in reducing
symptoms of snoring and sleep apnoea.Methods:A prospective single blinded randomised controlled trial was
conducted in the otolaryngology department of a UK teaching hospital (Exeter).
127 adult patients with a history of simple snoring or sleep apnoea were
recruited. 93 patients completed the study. Patients were excluded because of
severe sleep apnoea (apnoea index >40), or morbid obesity (BMI >40). The
study group completed a self-guided treatment programme of singing exercises contained
on a 3CD box set, performed for 20 minutes daily. Outcome measures included the
Epworth Sleepiness Scale, the SF-36 generic quality of life assessment tool,
visual analogue scales (VAS range 0-10) of snoring loudness and frequency, and
visual analogue scale of compliance (for intervention group). Results:The
Epworth scale improved significantly in the experimental group compared to the
control group (difference -2.5 units; 95% CI -3.8 to -1.1; p=0.000).
Frequency of snoring reduced significantly in the experimental group
(difference -1.5; 95% CI -2.6 to -0.4; p=0.01),
and loudness of snoring showed a trend to improvement which was non-significant
(difference -0.8; 95% CI -1.7 to 0.1; p = 0.08). Compliance with exercises was
good; median 6.6 (quartiles = 4.1, 8.3).Conclusions: Improving
the tone and strength of pharyngeal muscles with a 3 months programme of daily
singing exercises reduces the severity, frequency and loudness of snoring, and
improves symptoms of mild to moderate sleep apnoea.
Cite this paper
M. Hilton, J. Savage, B. Hunter, S. McDonald, C. Repanos and R. Powell, "Singing Exercises Improve Sleepiness and Frequency of Snoring among Snorers—A Randomised Controlled Trial," International Journal of Otolaryngology and Head & Neck Surgery, Vol. 2 No. 3, 2013, pp. 97-102. doi: 10.4236/ijohns.2013.23023.
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