Key result
FVC and age predict one-breath endurance, linking FVC to sustained /a/ and age to repeated /ka/.
Why the study?
It was unclear whether spirometrically measured forced vital capacity is associated with one-breath endurance in typically developing children and adolescents, and whether this association differs by task.
Is forced vital capacity associated with one-breath endurance in typically developing children and adolescents, and does this association differ by task?
Population
971 typically developing children and adolescents aged 8-17 years
Comparison
Sustained /a/ vs repeated /ka/ tasks to exhaustion
Design
Cross-sectional study
Authors
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FVC was associated with task-specific phonatory endurance in youth; leaves open whether spirometry aids clinical voice assessment.
Cross-Sectional (n=971)
Is forced vital capacity associated with one-breath endurance in typically developing children and adolescents, and does this association differ by task?
Separating respiratory capacity from task-specific endurance may help clinicians distinguish predominantly capacity-limited from coordination-limited patterns of reduced speech-breathing endurance in children.
GUANNAN et al. (2026) conducted a cross-sectional in Typically developing children and adolescents (n=971). Forced vital capacity (FVC) was evaluated on One-breath endurance for sustained /a/ and repeated /ka/. Forced vital capacity and age significantly predicted one-breath endurance, with FVC more strongly associated with sustained /a/ and age more strongly associated with repeated /ka/.
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