Gluteus Medius Latent Trigger Point and Muscle Strength in Healthy Subjects

Study Overview
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Brief Summary
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This study aimed to investigate the relationship between latent MTrPs and gluteus medius muscle strength in a group of healthy adults.

Detailed Description
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Latent myofascial trigger points (MTrPs) do not cause spontaneous pain; however, they may lead to a limited range of motion and muscle weakness. We hypothesized that latent MTrPs might decrease gluteus medius muscle strength in healthy individuals. Forty-eight healthy men will be included in the study. Trigger point examination for the gluteus medius will be performed bilaterally. Subjects with one or more trigger points on the dominant side and those without any trigger points will be assigned to two groups. Muscle strength for gluteus medius will be assessed with a manual muscle tester using the break test technique on both sides. The subjects and the examiners will be blinded. For statistical analysis, the independent sample t-test was used to compare the intergroup differences.

Official Title
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The Relationship Between Gluteus Medius Latent Trigger Point and Muscle Strength in Healthy Subjects

Conditions
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Myofascial Pain Syndrome, Muscle Weakness

Intervention / Treatment
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* Device: Muscle strength measurement


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient age: 18-40 years. Absence of musculoskeletal complaints related to the lumbar, sacroiliac, and hip area. Absence of bilateral latent MTrP in the gluteus medius muscle. Latent trigger point in the gluteus medius muscle on the dominant side with palpation. Exclusion Criteria: A history of medical treatment, physical therapy, injection therapy, or surgical treatment related to the lumbar, sacroiliac, and hip area. History of trauma, or malignancy or being pregnant, or if the patient is in the lactation period. Bilateral latent MTrP in the gluteus medius muscle. Presence of latent MTrP on the non-dominant side.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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Male

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Group 1. Latent Myofascial Trigger Point Group<br>24 participants who will be clinically diagnosed with unilateral latent myofascial trigger point in the dominant side gluteus medius muscle. | Device: Muscle strength measurement<br>* The bilateral gluteus medius muscle strength of each participant will be measured by the assessor (MB) blinded to the participants using the Lafayette manual muscle tester. (Lafayette Instrument Company, Lafayette IN, USA). In the participant's side-lying position, the practitioner applied resistance from the upper ankle to the abduction movement with slight flexion of the upper hip. During the measurements, the participants were asked to perform the maximum isometric contraction for 3 seconds. Gluteus medius muscle strength measurements were repeated three times, one minute apart, on the right and left sides. The mean of the measurements was calculated and recorded<br>|
| Group 2. Non-Latent Myofascial Trigger Point Group<br>24 participants who don't have latent myofascial trigger point. | Device: Muscle strength measurement<br>* The bilateral gluteus medius muscle strength of each participant will be measured by the assessor (MB) blinded to the participants using the Lafayette manual muscle tester. (Lafayette Instrument Company, Lafayette IN, USA). In the participant's side-lying position, the practitioner applied resistance from the upper ankle to the abduction movement with slight flexion of the upper hip. During the measurements, the participants were asked to perform the maximum isometric contraction for 3 seconds. Gluteus medius muscle strength measurements were repeated three times, one minute apart, on the right and left sides. The mean of the measurements was calculated and recorded<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Gluteus medius muscle strength | In the participant's side-lying position, the practitioner will be applied resistance from the upper ankle to the abduction movement with slight flexion of the upper hip. During the measurements, the participants will be asked to perform the maximum isometric contraction for 3 seconds. Gluteus medius muscle strength measurements will be repeated three times, one minute apart, on the right and left sides. The mean of the measurements will be calculated and recorded | One month | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Trigger point, Gluteus medius muscle