With due attention to prevalence of voice disorders in teachers and importance of prevention of this disorders;This research shows the most effective techniques to improve the voice of teachers
and the prevention of voice disorders.Inclusion criteria: Acquireing VHIscore below 14/5; Non smoking; Not having voice or damage laryngeal disorders; Aged between 40-26
Exclusion criteria: A day treatment program not doing; Affected with voice problem Such as:aphonia and have a cold
30 female teachers of special schools that have inclusion criteria participate in this study.They randomly divided into two groups
breathing and Acoustic analyses of each subjects voice done two time within 28 days.
During these 28 days, the participants of two groups doing determined exercises (Chewing exercises and vocal functional exercises )
and then respiratory acoustic variables such as:fundumental frequency; frequency jitter; frequency range; maximum phonation time and S to Z ratio , are analyzed and compared with each other.
General information
Acronym
IRCT registration information
IRCT registration number:IRCT2015090623919N1
Registration date:2015-10-05, 1394/07/13
Registration timing:prospective
Last update:
Update count:0
Registration date
2015-10-05, 1394/07/13
Registrant information
Name
Neda Zabihollah
Name of organization / entity
Ahvaz University of Medical Sciences
Country
Iran (Islamic Republic of)
Phone
+98 61 4224 5128
Email address
zabihollah.n@ajums.ac.ir
Recruitment status
Recruitment complete
Funding source
Ahvaz University of Medical Sciences
Expected recruitment start date
2015-10-07, 1394/07/15
Expected recruitment end date
2015-12-22, 1394/10/01
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Comparison of effect of vocal function exercises and chewing as methods of improving voice production in teachers of exceptional schools
Public title
Studying effect of chewing exercises and vocal function exercises on teachers voice
Purpose
Prevention
Inclusion/Exclusion criteria
Inclusion criteria: Acquireing VHIscore below 14/5; Non smoking; Not having voice or damage laryngeal disorders; Aged between 40-26
Exclusion criteria: A day treatment program not doing; Affected with voice problem Such as:aphonia and have a cold
Age
From 26 years old to 40 years old
Gender
Female
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size:
30
Randomization (investigator's opinion)
Randomized
Randomization description
Blinding (investigator's opinion)
Not blinded
Blinding description
Placebo
Not used
Assignment
Parallel
Other design features
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Ahvaz University of Medical Sciences
Street address
Golestan B.L.V
City
Ahvaz
Postal code
Approval date
2015-08-08, 1394/05/17
Ethics committee reference number
Ir.ajums.rec.1394.297
Health conditions studied
1
Description of health condition studied
Prevention of Voice Problems
ICD-10 code
Z50-5
ICD-10 code description
Speech Therapy
Primary outcomes
1
Description
Fundamental Frequency
Timepoint
Before and 28 days after intervention
Method of measurement
praat Softwaret
2
Description
Frequency Jitter
Timepoint
Before and 28 days after intervention
Method of measurement
praat Software
3
Description
Frequency Range
Timepoint
Before and 28 days after intervention
Method of measurement
praat Software
4
Description
Maximum Phonation Time
Timepoint
Before and 28 days after intervention
Method of measurement
Stopwatch
5
Description
S to Z sound ratio
Timepoint
Before and 28 days after intervention
Method of measurement
Stopwatch
Secondary outcomes
empty
Intervention groups
1
Description
Examination group1:
Vocal functional exercise:
Sustaining / i / as long as possible on a comfortable note,
Glideing from the lowest to the highest note in the frequency range,using/o/,
Glideing from the highes note to the lowest note in the frequency range,using /o/,
Sustaining the musical notes middle C and D,E,F,andG above middle C for as long as possible,using/o/ ,
each experimental group performe the exercises two times each day,with two repetitions each time,during 28 days
Category
Prevention
2
Description
Examination group2:
Chewing training:
Talking with the person on the need for more open mouth while talking,
instructioning exaggerated chewing ,
production of nonsense syllables like (Van, Dan, Da) with chewing,
, Useing word and phrases to practice chewing,
Thinking to chewing,
each experimental group performe the exercises two times each day,with two repetitions each time, during28 days
Category
Prevention
Recruitment centers
1
Recruitment center
Name of recruitment center
Ahvaz University of Medical Sciences,School of Rehabilitation
Full name of responsible person
Neda Zabihollah
Street address
Golestan B.L.V
City
Ahvaz
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Department of Medical Sciences, University of Jondi Shapvr ahvaz
Full name of responsible person
Nader Saky
Street address
Room4, Ground Floor, Department of Research Development and Technology, University of Medical Sciences, City University, Ahvaz
City
Ahvaz
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Department of Medical Sciences, University of Jondi Shapvr ahvaz
Proportion provided by this source
100
Public or private sector
empty
Domestic or foreign origin
empty
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
empty
Person responsible for general inquiries
Contact
Name of organization / entity
Ahvaz Jondi Shapur University of Medical Sciences
Full name of responsible person
Neda Zabihollah
Position
MS Student of Speech Therapy
Other areas of specialty/work
Street address
Ahvaz Jondi Shapur University of Medical Sciences, Golestan B.L.V
City
Ahvaz
Postal code
6135715794
Phone
+98 61336754360
Fax
Email
Info@ajums.ac.ir
Web page address
Person responsible for scientific inquiries
Contact
Name of organization / entity
Faculty of Rehabilitation, Jundishapur Ahwaz University of Medical Sciences
Full name of responsible person
Negin Moradi
Position
PHD Speech Therapy
Other areas of specialty/work
Street address
Faculty of Rehabilitation,Ahvaz University of Medical Sciences, Golestan B.L.V
City
Ahvaz
Postal code
Phone
+98 61337431013
Fax
Email
Info@ajums.ac.irneginmoradist@gmail.com
Web page address
Person responsible for updating data
Contact
Name of organization / entity
Ahvaz Jondi Shapur University of Medical Sciences
Full name of responsible person
Neda Zabihollah
Position
MS Student of Speech Therapy
Other areas of specialty/work
Street address
Ahvaz University of Medical Science, Golestan B.L.V
City
Ahvaz
Postal code
Phone
Fax
Email
Web page address
Sharing plan
Deidentified Individual Participant Data Set (IPD)