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Jaw-neck movement integration in 6-year-old children differs from that of adults
Umeå universitet, Medicinska fakulteten, Institutionen för odontologi.ORCID-id: 0000-0002-8986-9401
Umeå universitet, Medicinska fakulteten, Institutionen för odontologi.
Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.ORCID-id: 0000-0002-0366-4609
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2020 (Engelska)Ingår i: Journal of Oral Rehabilitation, E-ISSN 1365-2842, Vol. 47, nr 1, s. 27-35Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

BACKGROUND: A functional integration between the jaw and neck regions during purposive jaw movements is well described in adults, but there is a lack of knowledge of such integration during jaw function in children.

OBJECTIVES: To determine the movement integration between the jaw and neck during jaw motor tasks in 6-year-olds, whether there is a difference between children and adults.

METHODS: Jaw and neck movements were recorded with an optoelectronic 3D system in 25 healthy 6-year-olds (12 girls, 13 boys) and 24 healthy adults (12 women, 12 men) during paced jaw opening-closing and self-paced gum chewing. Jaw and neck movement amplitudes, intra-individual variation in movement amplitude, ratio between neck-jaw movement amplitudes and movement cycle time were analysed. Differences between children and adults were evaluated with Mann-Whitney U test for independent samples.

RESULTS: Compared to adults, 6-year-old children showed larger neck movement amplitudes (P = .008) during chewing, higher intra-individual variability in amplitudes of jaw (P = .008) and neck (P = .001) movements, higher ratio between neck-jaw movement amplitudes for jaw opening-closing (P = .026) and chewing (P = .003), and longer jaw movement cycle time (P ≤ .0001) during the jaw opening-closing task.

CONCLUSION: Despite integrated jaw-neck movements in 6-year-old children, the movement pattern differs from that of adults and may be interpreted as an immature programming of jaw-neck motor behaviour. The well-integrated movements observed in adults most likely develop over years, perhaps into adolescence, and needs further research including well-controlled longitudinal studies to map this development in order to provide appropriate age-related clinical treatment for functional disorders.

Ort, förlag, år, upplaga, sidor
John Wiley & Sons, 2020. Vol. 47, nr 1, s. 27-35
Nyckelord [en]
adult, child, head, jaw, motor activity, movements
Nationell ämneskategori
Sjukgymnastik
Identifikatorer
URN: urn:nbn:se:umu:diva-163875DOI: 10.1111/joor.12865ISI: 000483252900001PubMedID: 31357241Scopus ID: 2-s2.0-85070938798OAI: oai:DiVA.org:umu-163875DiVA, id: diva2:1358050
Tillgänglig från: 2019-10-07 Skapad: 2019-10-07 Senast uppdaterad: 2024-01-17Bibliografiskt granskad

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Österlund, CatharinaNilsson, EvelinaHäger, Charlotte

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Österlund, CatharinaNilsson, EvelinaHäger, Charlotte
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Journal of Oral Rehabilitation
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