Acute Myotonometric Changes in the Masseter and Upper Trapezius Muscles After Upper Body Quarter Stretching and Coordination Exercises or Chewing
Pathologies in neck and masticatory muscles affect muscle tone and biomechanical and viscoelastic properties, necessitating precise assessment for treatment. This study evaluated the impact of two guided interventions—relaxing exercises targeting the neck and masticatory muscles (“Exercise”) and hea...
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2025-01-01
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| author | Marša Magdič Miloš Kalc Matjaž Vogrin |
| author_facet | Marša Magdič Miloš Kalc Matjaž Vogrin |
| author_sort | Marša Magdič |
| collection | DOAJ |
| description | Pathologies in neck and masticatory muscles affect muscle tone and biomechanical and viscoelastic properties, necessitating precise assessment for treatment. This study evaluated the impact of two guided interventions—relaxing exercises targeting the neck and masticatory muscles (“Exercise”) and heavy chewing using six chewing gums (“Chewing”)—on the masseter and upper trapezius muscles. Twelve participants (aged 19–40 years) underwent myotonometric assessment pre- and post-intervention, measuring tone, stiffness, decrement, relaxation time, and creep. The results showed significant changes in the masseter muscle after exercise, with increased stiffness (14.46%, <i>p</i> < 0.001) and tone (7.03%, <i>p</i> < 0.001) but decreased creep (−9.71%, <i>p</i> < 0.001) and relaxation time (−11.36%, <i>p</i> < 0.001). Conversely, chewing decreased stiffness (−8.82%, <i>p</i> < 0.001) and tone (−5.53%, <i>p</i> < 0.001), while it increased creep (9.68%, <i>p</i> < 0.001) and relaxation time (9.98%, <i>p</i> < 0.001). In the trapezius muscles, tone decreased after both interventions (Exercise: −7.65%, <i>p</i> < 0.001; Chewing: −1.06%, <i>p</i> = 0.003), while relaxation increased (Exercise: 1.78%, <i>p</i> < 0.001; Chewing: 2.82%, <i>p</i> < 0.001). These findings reveal the distinct effects of exercise and chewing on muscle properties, emphasising the complexity of their therapeutic potential and the need for further investigation. |
| format | Article |
| id | doaj-art-4c73684b9ab24367b368dfef2456f822 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-4c73684b9ab24367b368dfef2456f8222025-01-10T13:15:14ZengMDPI AGApplied Sciences2076-34172025-01-0115134410.3390/app15010344Acute Myotonometric Changes in the Masseter and Upper Trapezius Muscles After Upper Body Quarter Stretching and Coordination Exercises or ChewingMarša Magdič0Miloš Kalc1Matjaž Vogrin2Institute of Sports Medicine, Faculty of Medicine, University of Maribor, 2000 Maribor, SloveniaInstitute for Kinesiology Research, Science and Research Centre Koper, 6000 Koper, SloveniaInstitute of Sports Medicine, Faculty of Medicine, University of Maribor, 2000 Maribor, SloveniaPathologies in neck and masticatory muscles affect muscle tone and biomechanical and viscoelastic properties, necessitating precise assessment for treatment. This study evaluated the impact of two guided interventions—relaxing exercises targeting the neck and masticatory muscles (“Exercise”) and heavy chewing using six chewing gums (“Chewing”)—on the masseter and upper trapezius muscles. Twelve participants (aged 19–40 years) underwent myotonometric assessment pre- and post-intervention, measuring tone, stiffness, decrement, relaxation time, and creep. The results showed significant changes in the masseter muscle after exercise, with increased stiffness (14.46%, <i>p</i> < 0.001) and tone (7.03%, <i>p</i> < 0.001) but decreased creep (−9.71%, <i>p</i> < 0.001) and relaxation time (−11.36%, <i>p</i> < 0.001). Conversely, chewing decreased stiffness (−8.82%, <i>p</i> < 0.001) and tone (−5.53%, <i>p</i> < 0.001), while it increased creep (9.68%, <i>p</i> < 0.001) and relaxation time (9.98%, <i>p</i> < 0.001). In the trapezius muscles, tone decreased after both interventions (Exercise: −7.65%, <i>p</i> < 0.001; Chewing: −1.06%, <i>p</i> = 0.003), while relaxation increased (Exercise: 1.78%, <i>p</i> < 0.001; Chewing: 2.82%, <i>p</i> < 0.001). These findings reveal the distinct effects of exercise and chewing on muscle properties, emphasising the complexity of their therapeutic potential and the need for further investigation.https://www.mdpi.com/2076-3417/15/1/344exercisemasticationmuscle tonusrelaxation techniquesrelaxation therapytemporomandibular joint disorders |
| spellingShingle | Marša Magdič Miloš Kalc Matjaž Vogrin Acute Myotonometric Changes in the Masseter and Upper Trapezius Muscles After Upper Body Quarter Stretching and Coordination Exercises or Chewing Applied Sciences exercise mastication muscle tonus relaxation techniques relaxation therapy temporomandibular joint disorders |
| title | Acute Myotonometric Changes in the Masseter and Upper Trapezius Muscles After Upper Body Quarter Stretching and Coordination Exercises or Chewing |
| title_full | Acute Myotonometric Changes in the Masseter and Upper Trapezius Muscles After Upper Body Quarter Stretching and Coordination Exercises or Chewing |
| title_fullStr | Acute Myotonometric Changes in the Masseter and Upper Trapezius Muscles After Upper Body Quarter Stretching and Coordination Exercises or Chewing |
| title_full_unstemmed | Acute Myotonometric Changes in the Masseter and Upper Trapezius Muscles After Upper Body Quarter Stretching and Coordination Exercises or Chewing |
| title_short | Acute Myotonometric Changes in the Masseter and Upper Trapezius Muscles After Upper Body Quarter Stretching and Coordination Exercises or Chewing |
| title_sort | acute myotonometric changes in the masseter and upper trapezius muscles after upper body quarter stretching and coordination exercises or chewing |
| topic | exercise mastication muscle tonus relaxation techniques relaxation therapy temporomandibular joint disorders |
| url | https://www.mdpi.com/2076-3417/15/1/344 |
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