Bruxism, EMG, Muscle Strength, Neck Muscle Issue
Conditions
Brief summary
to measure strength of the deep anterior neck muscles with a new measurement protocol and by using the NOD device, a dynamometer, in subjects with and without bruxism, and compared to EMG on the superficial muscles of the anterior neck and the masseter muscle.
Interventions
OTHERcranio-cervical flexion test with NOD
testing the anterior neck muscles during a nodding movement and by using a dynamometer
Sponsors
Zurich University of Applied Sciences
Study design
Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Inclusion criteria
* with or without bruxism * German fluent * informend consent
Exclusion criteria
* primary headache * cranio-mandibulary disorders (CMD) in \>3 months within the last 12 months * current neck pain intensity \> 2 out of 10 on Numeric rating scale * known: * neurological pathologies * mental impairments or diseases * pregnancy * rheumatic disorders
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| activation score = AS | baseline | stepwise (5 steps) and correct (no substitution by the superficial muscles) activation of the deep neck flexors, that can be hold for 10 seconds: Each step increases by 3.4N. The scale will be offset, starting at 0N. Steps are accordingly: 3.4N, 6.8N, 10.2N, 13.6N, 17N. Higher scores denote better function |
| performance index= PI | baseline | number of correctly performed 10 second holds at each incremental step. number between 1 and 10. Higher scores denote better function. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Neck-Pain | baseline | neck pain, headache or discomfort during or immediate after the test protocol, measured by a numeric rating scale from 0 to 10. Higher scores denote more pain or discomfort |
Countries
Switzerland
Outcome results
None listed