liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Normativa värden för läppkraft hos barn mellan fem och tio år: Relaterat till bilabial stavelseproduktion
Linköping University, Department of Clinical and Experimental Medicine, Speech and Language Pathology .
Linköping University, Department of Clinical and Experimental Medicine, Speech and Language Pathology .
2009 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesisAlternative title
Normative Values for Lip Force in Children between Five and Ten Years : Related to Bilabial Syllable Production (English)
Abstract [en]

Lip force has been found to affect the ability to achieve satisfying speech production and swallowing. A normative value for lip force in adults has been measured to 15 Newton (N). Corresponding value for children measured with Lip Force Meter 100 (LF100) does not exist. In the current study lip force was measured in children between the ages of five and ten years. The aim of the study was to obtain normative values for children with typical development in separate age groups. Production of syllable with initial bilabial plosive was further calculated to see if any correlation between lip force and syllable production existed. An examination of learning effect in repeated measures was also executed. The age group 5:0-5:11 only included four participants. This age group was therefore not included in the statistical measurements.

The common mean for lip force in all children was 14.98 N. The mean for each age group was 12.75 N for 5:0-5:11 year olds, 14.69 N for 6:0-6:11, 16.93 N for 7:0-7:11, 14.97 N for 8:0-8:11 and 14.14 N for the age group 9:0-9:11 years. In the current study no significant differences in lip force was found between age groups.

The common mean for syllable production in all children was 5.50 syllables/second. A significant difference between the ages six and seven year olds as well as six and nine year olds was found, where the older age groups showed higher values. No significant correlation was found between lip force and syllable production.

Analysis of the learning effect over three lip force measurements showed tendencies for increased lip force at the last measure. The difference was not significant. In the present study no statistical measurements for gender differences were executed for each separate age group due to small numbers. Measurements in age group 6:0-9:11 showed tendencies for higher values of both lip force and syllable production for girls. These differences were not significant.

Place, publisher, year, edition, pages
2009. , 28 p.
Keyword [en]
Lip force, normative values, oral screen, bilabial syllable production, children
Keyword [sv]
Läppkraft, normativa värden, munskärm, bilabial stavelseproduktion, barn
National Category
URN: urn:nbn:se:liu:diva-18646ISRN: LIU-IKE/SLP-A- -09/003- -SEOAI: diva2:221041
2009-05-20, Elsa Brändströmsalen, Campus US, Linköpings universitet, Linköping, 09:00 (Swedish)
Available from: 2009-06-03 Created: 2009-06-03 Last updated: 2010-12-10Bibliographically approved

Open Access in DiVA

fulltext(683 kB)620 downloads
File information
File name FULLTEXT01.pdfFile size 683 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
Speech and Language Pathology

Search outside of DiVA

GoogleGoogle Scholar
Total: 620 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 188 hits
ReferencesLink to record
Permanent link

Direct link