Effects of sitting posture and jaw clenching on neck and trunk muscle activities during typing.
Neck pain is one of the most common musculoskeletal complaints. Evidence suggests that increased activities of neck and trunk muscles are one of the mechanisms related to neck pain. Jaw clenching and sitting posture may modulate the muscle activity in neck and trunk muscles during typing. The presen...
| Publicado en: | Journal of Oral Rehabilitation Vol. 48; no. 5; pp. 568 - 575 |
|---|---|
| Autores principales: | , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
May2021
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=149783047&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 149783047 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0305182X ERZ jtl: Journal of Oral Rehabilitation issn: 0305182X maglogo: Y pubinfo: dt: May2021 vid: 48 iid: 5 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 149783047 148583798 149783047 149783047 10.1111/joor.13152 149783047 ppf: 568 ppct: 7 formats: tig: atl: Effects of sitting posture and jaw clenching on neck and trunk muscle activities during typing. aug: au: Tomita, Yosuke Suzuki, Yoshitaka Tanaka, Yuto Hasegawa, Yoko Yoshihara, Yasutomo Okura, Kazuo Matsuka, Yoshizo affil: Department of Physical Therapy, Takasaki University of Health and Welfare, Takasaki, Japan sug: subj: Sitting Posture Bruxism Neck Muscles Physiology Torso Physiology Muscle, Skeletal Physiology Keyboards Task Performance and Analysis Human Adult Electromyography Sternocleidomastoid Muscles Trapezius Muscles Wilcoxon Signed Rank Test Post Hoc Analysis Friedman Test Descriptive Statistics Chi Square Test Neck Pain Etiology Adult: 19-44 years ab: Neck pain is one of the most common musculoskeletal complaints. Evidence suggests that increased activities of neck and trunk muscles are one of the mechanisms related to neck pain. Jaw clenching and sitting posture may modulate the muscle activity in neck and trunk muscles during typing. The present study aimed to assess the effects of different postural positions and clenching conditions on neck and trunk muscle activities. Thirteen healthy adults (39.8 ± 5.0 years) performed computer typing tasks in four conditions (two postural positions [upright vs slouched] and two jaw clenching conditions [clenching vs non‐clenching]). Integrated surface electromyography (iEMG) was measured in sternocleidomastoid (SCM), upper trapezius (uTP) and middle trapezius (mTP) muscles and compared between conditions. The Friedman and Wilcoxon signed‐rank tests with Bonferroni's corrections were used to estimate the condition‐specific differences in the iEMG data. The statistical significance level was set at 5%. In both postural positions, iEMGSCM was significantly greater under the jaw clenching than under the non‐clenching condition (χ2 = 21.700, P <.01). Under both jaw clenching conditions, iEMGuTP was significantly greater in the slouched than in the upright postural position (χ2 = 23.182, P <.01). No significant differences in iEMGmTP were seen across conditions (χ2 = 5.018, P =.10). Sitting posture and jaw clenching appear to influence activities of different muscles. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|