Psoas Muscle Release in Non-specific Mechanical Low Back Pain

Sponsor
Escola Superior de Tecnologia da Saúde do Porto
Study ID
NCT06994364
Status
Not Yet Recruiting

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Conditions

  • Low Back Pain

Eligibility Criteria

Sex
ALL
Age
18 Years - 30 Years
Healthy Volunteers
Not accepted

Interventions

  • Trigger point release — OTHER
    Ischemic compression technique is based on the application of manual pressure to treat trigger points. The patient was asked to lie in the supine position on the examination table. The osteopath identified the muscle through deep palpation and movement-based muscle differentiation, then applied 90 seconds of tolerable pressure to the trigger point on both sides.
  • Simulation of the intestinal listening technique. — OTHER
    The patient will be asked to lie in a supine position on the treatment table to simulate the listening technique for assessing the mobility and motility of the small intestine without influencing the final results, with the sensory hand placed below the umbilicus.

Study Details

Nonspecific low back pain affects approximately 80% of the population at some point in their lives. The psoas muscle-positioned between the lumbar and pelvic regions-together with the paravertebral muscles, constitutes the primary muscular group responsible for dynamic stabilization of the spine. Alterations in this muscle may contribute to the onset of low back pain by modifying spinal biomechanics, particularly through increased lumbar lordosis and greater mechanical overload in the lumbar region. Latent myofascial trigger points are asymptomatic but can lead to muscle shortening and weakness. They are characterized by local tenderness and may provoke a localized muscular response known as a local twitch response. The aim of this randomized experimental study was to evaluate the immediate effect of ischemic compression applied to the trigger point of the psoas muscle on pain perception and lumbar range of motion. Researchers will compare a group with a placebo technique to see if the release of the psoas muscle produces effects in this condition. The variables analyzed in this study included low back pain, assessed using the Numeric Pain Rating Scale (NPRS); lateral lumbar flexion (right and left), measured using a tape measure (distance from the third finger to the floor); and lumbar flexion range of motion, assessed using the Schober test.

Key Dates

First listed
May 29, 2025
Start date
Apr 30, 2026
Status verified
Sep 2025
Primary completion
Aug 31, 2026
Completion
Sep 30, 2026

Study Design

Enrollment
40 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • Placebo Comparator: Control group
    In the control group, the simulation of the technique for listening to the mobility and motility of the small intestine was performed by placing one hand on the abdomen, without pressure.
  • Experimental: Experimental group
    In the experimental group, the trigger point release technique for the psoas muscle was performed.

Primary Outcome Measure

Low back pain [ Time Frame: Immediately after the intervention ]

Central Contacts

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