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Validity and Reliability of the MyotonPRO and a Tissue Hardness Meter in Measuring the Stiffness of Upper Trapezius Myofascial Trigger Points

Validity and Reliability of the MyotonPRO and a Tissue Hardness Meter in Measuring the Stiffness of Upper Trapezius Myofascial Trigger Points

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20260506002
Enrollment
59
Registered
2026-05-06
Start date
2026-05-05
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myofascial Pain Syndrome having active Myofascial Trigger Point Myofascial Pain Syndrome, Myofascial Trigger Point, Upper Trapezius

Interventions

This study is measuring the stiffness of the upper trapezius muscle in individuals with myofascial trigger points using MyotonPRO, Tissue Hardness Meter, and Ultrasound Imaging (Shear Wave Elastograph
Screening
Individuals with MPS in the upper trapezius muscle

Sponsors

ASEAN GMS
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to 40 Years

Inclusion criteria

Inclusion criteria: The study included participants (1) Participants of both male and female (2) ages 20 to 40 years with symptoms of neck pain of more than 3 months, (3) Body Mass Index (BMI) of 18.5 to 24.9 kg/cm2, (3) presence of active myofascial trigger point in the upper trapezius with physical examination.

Exclusion criteria

Exclusion criteria: (1) Participants who have received anti inflammatory drugs or physical therapy within 1 month prior to the study enrollment, (2) Participants have pain intensity at rest with V AS equal to or more than 7, (3) Symptoms or diseases related to abnormalities in muscle structure or other abnormalities in the musculoskeletal system in the neck, chest, and arms area, (4) Symptoms or diseases related to circulatory issues, such as diabetes, heart disease, and hypertension, (5) Participants with a history of surgery or serious injury to the neck, chest, or upper limb, (6) Those with diseases affecting the immune system, nerves, or causing inflammation, (7) Pregnant woman.

Design outcomes

Primary

MeasureTime frame
MyotonPRO (includes muscle tone (Hz), stiffness (N/m), elasticity (logarithmic decrement), relaxation time (ms), and creep (De). 3 applies pre compression 0.18 N, then short mechanical impulses of 0.4 N force for 15 ms to induce damped oscillations in muscle belly of UT muscle

Secondary

MeasureTime frame
Tissue Hardness Meter (tissue hardness : unit %). 3 applied perpendicularly to the tissue with a slow, constant compression force of 30 N for 3 seconds until an audible beep was detected,Shear Wave Elastography (unit kPa) 3 SWE performed with the longitudinal axis of the probe aligned parallel to the muscle fiber direction. The probe was held motionless for several seconds to allow stabilization of the SWE image.

Countries

Thailand

Contacts

Public ContactChittrawadi Thanomsap

Faculty of Associated Medical Science, Khon Kaen University, Thailand

am.inbox@kku.ac.th043202399

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026