Abnormal patterns of speech breathing in dysarthric speakers following severe closed head injury.
The respiratory abilities of a group of 20 subjects with a speech disorder resulting from severe closed head injury (CHI) were assessed using both spirometric and kinematic techniques and compared with those of a group of 20 non-neurologically impaired controls matched for age and gender. Results of the spirometric assessment showed that the CHI subjects as a group had lower vital capacities and lower forced expiratory volumes 1 second than the controls. Kinematic assessment also showed that the CHI subjects had problems co-ordinating the action of the rib-cage and abdomen when carrying out speech tasks such as vowel prolongations, syllable repetitions and reading. Results are discussed in terms of the effects of CHI on neuromuscular function.
Murdoch
B E
BE
Department of Speech and Hearing, University of Queensland, Australia.
Theodoros
D G
DG
Stokes
P D
PD
Chenery
H J
HJ
D000009:Abdominal Muscles / Q000503:physiopathology; D000293:Adolescent; D000328:Adult; D001925:Brain Damage, Chronic / Q000503:physiopathology*; D004401:Dysarthria / Q000503:physiopathology*; D005260:Female; D005652:Functional Residual Capacity / Q000502:physiology; D016489:Head Injuries, Closed / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology; D012123:Pulmonary Ventilation / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D013147:Spirometry / Q000295:instrumentation