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Strain-Counterstrain Treatment of Piriformis Pain

Who can join

Ages 18 to 65 · All sexes · Healthy volunteers welcome

Inclusion Criteria:

* 18 to 65 years of age
* Tender point (or trigger point) in piriformis muscle determined by physical exam

Exclusion criteria:

* Less than 45 degrees of active hip flexion, less than 5 degrees of active hip internal rotation or less than 30 degrees of active hip external rotation, on side of affected piriformis
* Unable to lay prone
* Non-English speaker
* Inability to attend 2 sessions within the same month
* Active cancer
* Pregnant
* Diagnosis of lumbar radiculopathy
* Greater than grade 1 lumbar spondylolisthesis
* Presence of lumbar region Pars Defect
* Receiving massage, acupuncture, chiropractic treatments, osteopathic treatments during study period.

About the study

The purpose of this investigator-initiated study is to provide an efficient and non-invasive treatment option for pain caused by the piriformis muscle.

What is being tested

• Strain-Counterstrain treatment of piriformis muscle (other)

Sponsor: Loma Linda University · Participants: 30 · Started: 2026-09

Contact the study team

• Roya Vahdatinia, DO · Phone: 9095586202
• Mickey Lui, DO · Phone: 9095586202

Official record on ClinicalTrials.gov — NCT05023005

Locations in the U.S.

Conditions

• Low Back Pain
• Signs and Symptoms

From ClinicalTrials.gov, data retrieved Oct 2, 2026. Each study sets its own eligibility; the study team decides who can join.