Abstract
A measure of maximum phonation tasks such as how long a vowel can be sustained is a well-established procedure used by speech-language pathologists when assessing children. Maximum phonation rime (MPT) is the length of time a patient can sustain phonation on a single breath. The purpose of this study was to compare MPT in children with normal and abnormal voices and to study the vowel effect, trial effect, and gender difference. Twenty subjects participated in the study (age range: 8–12 years) and 20 children comprised the control group(age range: 4–12 years). The MPTs obtained for the two groups were compared and analyzed. It was concluded that children usually can sustain vowels for a much shorter duration than adults and that the presence of a voice disorder further reduces their MPT significantly. Here we present a protocol for clinicians to follow when administering MPT to young children.
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