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Conducting a Comprehensive Voice Assessment in Parkinson’s Disease - page 11 / 22

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Assessing Respiration - Endurance and Support

DETECT

   -  Shallow & reduced breathing; air supply and/or wastge  

   -  Difficulty coordinating breathing and speaking

     TASK

        a) Maintain duration of phonation on

               1) vowel ‘ah’      &     2)    s/z ratio (< 1.4)

          -  if /s/ is 20% longer than /z/ (>1.4) indicative of vocal pathology     

                   Repeat  tasks 3 times – use stop watch

                      -     Normal                                  20    to 25      sec.

                            Sedate Geriatric                   14.7  to 19.3  sec.   

 2) Assess maintenance of sufficient muscular effort over time during speech  

      TASK

       Rapidly count to 200 noting changes in phonation, veloPharyngeal    

       closure and articulation of speech

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