Manual Diaphragm Therapy and Masseter Muscle Activity in Healthy Young Women: An Exploratory Randomized Study of sEMG, Mandibular Motor Function, and Perceived Stress
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Le résumé fourni par la source
This exploratory randomized study examined whether manual diaphragm therapy is associated with masseter muscle activity, mandibular motor function, and perceived stress in healthy women. Forty-two asymptomatic women aged 20–30 years were randomized to an intervention group (n = 20), receiving six sessions over two weeks, or a no-intervention control group (n = 22). Before and after the intervention period, bilateral masseter surface electromyography (sEMG) was recorded at rest and during standardized mandibular motor tasks; mandibular range of motion was measured with an electronic caliper, and perceived stress was assessed using the Perceived Stress Questionnaire. Non-parametric tests with Bonferroni correction were applied. No significant within-group changes were observed in resting masseter sEMG. The only task-related within-group result that remained significant after correction was a reduction in normalized right masseter mean RMS amplitude during protrusion in the intervention group (p = 0.001; adjusted p = 0.032; r = 0.685). Mandibular range of motion increased in both groups, but change scores did not differ between groups. Stress-related outcomes and correlations with sEMG or mandibular motion were not significant after adjustment. These findings do not demonstrate consistent group-specific effects. The isolated within-group finding should be regarded as preliminary and hypothesis-generating and cannot be attributed specifically to manual diaphragm therapy.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Manual Diaphragm Therapy and Masseter Muscle Activity in Healthy Young Women: An Exploratory Randomized Study of sEMG, Mandibular Motor Function, and Perceived Stress
- Date Crossref
- 21/08/2026
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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University of Physical Culture in Kraków Institute of Clinical Rehabilitation pays non établi dans la noticeUniversité ou école supérieure
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Andrzej Frycz Modrzewski Krakow University pays non établi dans la noticeUniversité ou école supérieure
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Medical University of Silesia pays non établi dans la noticeUniversité ou école supérieure
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University of Occupational Safety Management in Katowice pays non établi dans la noticeUniversité ou école supérieure
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University of Silesia in Katowice pays non établi dans la noticeUniversité ou école supérieure
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Jagiellonian University pays non établi dans la noticeUniversité ou école supérieure
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Faculty of Medicine Department of Prosthodontics and Orthodontics pays non établi dans la noticeUniversité ou école supérieure
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Faculty of Health Science pays non établi dans la noticeUniversité ou école supérieure
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School of Scientific-Behavioral Psychotherapy pays non établi dans la noticeUniversité ou école supérieure
Institute of Clinical Rehabilitation — University of Physical Culture in Kraków, Andrzej Frycz Modrzewski Krakow University et Medical University of Silesia, avec 6 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.