Cardiovascular and muscle activity during chewing in whiplash-associated disorders (WAD)

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MARC

Kalezic, NebojsaUmeå universitet,Högskolan i Gävle,CBF,Sports Medicine Unit, Umea University, Sweden,Idrottsmedicin (author)

Cardiovascular and muscle activity during chewing in whiplash-associated disorders (WAD)

Article/chapterEnglish2010

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Elsevier BV,2010
printrdacarrier

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LIBRIS-ID:oai:DiVA.org:hig-6556
https://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-6556URI
https://doi.org/10.1016/j.archoralbio.2010.03.015DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-39528URI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

Notes

Objective. The present study aimed to elucidate possible physiological mechanisms behind impaired endurance during chewing as previously reported in WAD. We tested the hypothesis of a stronger autonomic reaction in WAD than in healthy subjects in response to dynamic loading of the jaw-neck motor system. Design. Cardiovascular reactivity, muscle fatigue indicies of EMG, and perceptions of fatigue, exhaustion and pain were assessed during standardised chewing. Twenty-one WAD subjects and a gender/age matched control group participated. Baseline recordings were followed by two sessions of alternating unilateral chewing of a bolus of gum with each session followed by a rest period. Results. More than half of the WAD subjects terminated the test prematurely due to exhaustion and pain. In line with our hypothesis the chewing evoked an increased autonomic response in WAD exhibited as a higher increase in heart rate as compared to controls. Furthermore, we saw consistently higher values of arterial blood pressure for WAD than for controls across all stages of the experiment. Masseter EMG did not indicate muscle fatigue nor were there group differences in amplitude and mean power frequency. Pain in the WAD group increased during the first session and remained increased, whereas no pain was reported for the controls. Conclusion. More intense response to chewing in WAD might indicate pronounced vulnerability to dynamic loading of the jaw-neck motor system with increased autonomic reactivity to the test. Premature termination and autonomic involvement without EMG signs of muscle fatigue may indicate central mechanisms behind insufficient endurance during chewing.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Hälsovetenskap Arbetsmedicin och miljömedicin hsv//swe
MEDICAL AND HEALTH SCIENCES Health Sciences Occupational Health and Environmental Health hsv//eng
MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Odontologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Dentistry hsv//eng
Jaw-neck pain
chewing
autonomic reactivity
endurance
fatigue
Whiplash Associated Disorder

Added entries (persons, corporate bodies, meetings, titles ...)

Noborisaka, YukaHögskolan i Gävle,CBF,Department of Psyichiatry, Matsubara Hospital, Japan(Swepub:hig)n/a (author)
Nakata, MinoriHögskolan i Gävle,CBF,Department of Hygiene, Kanazawa Medical University, Japan(Swepub:hig)n/a (author)
Crenshaw, Albert G.Högskolan i Gävle,CBF(Swepub:hig)acw (author)
Karlsson, StefanBiomedical Engineering and Informatics, University Hospital, Umeå, Sweden (author)
Lyskov, EugeneHögskolan i Gävle,CBF(Swepub:hig)ekv (author)
Eriksson, Per-OlofUmeå universitet,Institutionen för odontologi,Clinical Oral Physiology, Umeå University, Sweden(Swepub:umu)peer0001 (author)
Högskolan i GävleCBF (creator_code:org_t)

Related titles

In:Archives of Oral Biology: Elsevier BV55:6, s. 447-4530003-99691879-1506

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By the author/editor: Kalezic, Nebojsa; Noborisaka, Yuka; Nakata, Minori; Crenshaw, Albert ...; Karlsson, Stefan; Lyskov, Eugene; show more...; Eriksson, Per-Ol ...; show less...

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MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Health Sciences; and Occupational Hea ...

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Dentistry

Articles in the publication: Archives of Oral ...

By the university: University of Gävle; Umeå University

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