Abstract
Background:During speech, larynx is higher in the neck for high-pitched sounds and lower for low-pitched sounds. Patients with different problems in cervical and cervicothoracic spine use cervical orthosis to limit cervical motion. This study aimed to evaluate the effects of Minerva orthosis on larynx height in young, healthy volunteers.Subjects and methods:This study included 18 subjects. Acoustic measurement of frequency variability has been assessed in 3 brace conditions: (1) without brace, (2) with brace, and (3) 30 minutes after wearing the brace.Results:Several statistically significant differences were found in the comparison between Minerva and 30 minutes after Minerva.Conclusion:When planning cervical orthosis treatment, it is important to consider the reduction in larynx height that may result from bracing for those who are already at risk of developing dysphagia and dysphonia.
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