Abstract
This study investigated the effects of semireclining and upright positions on production of utterances of increasing length by 10 physically typical preschoolers and 10 children with cerebral palsy. Sentences of 3, 7, and 10 syllables were imitated on one breath using the Respitrace™ to gather kinematic data of chest wall use. Analysis indicated that the reclining position led to 83% productions on one breath, while 95% could be produced on one breath in the upright position. During the longer 7- and 10-syllable utterances, children with cerebral palsy successfully imitated 48% and 18% of these utterances, while the control group performed 83% and 35% correctly for the 7- and 10-syllable tasks, respectively.
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