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Jaw–neck motor stra...
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Böthun, AliciaUmeå universitet,Institutionen för odontologi,Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden.
(author)
Jaw–neck motor strategy during jaw‐opening with resistance load
- Article/chapterEnglish2022
Publisher, publication year, extent ...
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2021-12-19
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John Wiley & Sons,2022
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:umu-190626
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-190626URI
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https://doi.org/10.1111/joor.13291DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-47359URI
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https://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-37543URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Background: The jaw and neck motor systems have a close functional integration but the effect of resistance load to the mandible during jaw opening on the jaw-neck integration is not known.Objectives: To evaluate the effect of resistance load compared to no load on integrated jaw and neck motor function in individuals free from pain and dysfunction in the jaw and neck regions.Methods: Jaw and head movements during continuous jaw opening were recorded with an optoelectronic system (MacReflex® ) in 26 pain-free individuals (14 women, 12 men, mean age 22 years). Jaw opening was performed with and without resistance load (1600 g) to the mandible. The relationship between jaw movement amplitude, head movement amplitude, head/jaw ratio (quotient of head and jaw movement amplitude) and resistance load were modelled using linear mixed-model analysis. A p-value <.05 was considered statistically significant.Results: The expected head/jaw ratio mean was increased by 0.05 (95% CI: 0.03, 0.08, p < .001) with resistance load as compared to no load. This corresponds to an increase in expected mean by 55.6%. With resistance load, expected mean head movement amplitude increased by 1.4 mm (95% CI: 0.2, 2.5, p = .018), and expected mean jaw movement amplitude decreased by 3.7 mm (95% CI: -7.0, -0.5, p = .025).Conclusion: There is a compensation and adaptation of integrated jaw-neck motor function with an altered jaw-neck motor strategy during jaw opening with resistance load compared to no load. The head/jaw ratio demonstrates increased proportional involvement of the neck during increased load on the jaw system.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Häggman-Henrikson, BirgittaMalmö universitet,Umeå universitet,Institutionen för odontologi,Department of Orofacial Pain and Jaw Function, Faculty of Odontology, Malmö University, Malmö, Sweden,Odontologiska fakulteten (OD),Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden.,Umeå University; Malmö University(Swepub:mau)ad7892
(author)
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Wiesinger, Birgitta,1963-Umeå universitet,Institutionen för odontologi,Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden; Department of Research and Development, Umeå University, Sundsvall, Sweden.(Swepub:umu)biawir01
(author)
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Wänman, AndersUmeå universitet,Institutionen för odontologi,Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden.(Swepub:umu)anwa0001
(author)
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Hellström, Fredrik,1973-Högskolan i Gävle,Arbetshälsovetenskap,Centrum för belastningsskadeforskning(Swepub:hig)fhm
(author)
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Österlund, Catharina,1965-Umeå universitet,Institutionen för odontologi,Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umeå University, Umeå, Sweden.(Swepub:umu)caaosd84
(author)
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Umeå universitetInstitutionen för odontologi
(creator_code:org_t)
Related titles
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In:Journal of Oral Rehabilitation: John Wiley & Sons49:5, s. 514-5211365-28420305-182X
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