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临床试验/NCT06994364
NCT06994364尚未招募不适用

Efficacy of Psoas Muscle Release in Young Adults With Non-specific Mechanical Low Back Pain: Randomized Controlled Trial

Escola Superior de Tecnologia da Saúde do Porto0 个研究点目标入组 40 人开始时间: 2026年4月1日最近更新:

试验速览

阶段
不适用
状态
尚未招募
入组人数
40
主要终点
Low back pain

研究概览

简要总结

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.

详细描述

The present study will be a randomized, double-blind clinical trial designed to analyze the immediate effect of trigger point release of the psoas muscle on pain and lumbar spine range of motion in young adults with nonspecific mechanical low back pain.

The research will involve a sample composed of individuals aged between 18 and 30 years, who will have experienced low back pain within one month prior to participation and will present a latent trigger point in the psoas muscle.

Participants will be randomly assigned to two groups: the experimental group, which will undergo the ischemic compression technique on the psoas muscle; and the control group, which will receive a simulated technique involving listening to the mobility and motility of the small intestine. Assessments will be conducted before and after the intervention using the Visual Analog Scale (VAS), the Numeric Pain Rating Scale (NPRS), measurement of lumbar lateral flexion with a measuring tape, and the modified Schober test for trunk forward flexion.

This study will aim to address the existing gap in the literature regarding the effectiveness of specific osteopathic techniques applied to the psoas muscle in relieving low back pain and improving mobility and range of motion. The methodological rigor, randomization, and double-blind design will contribute to ensuring the reliability of the collected data and the validity of the results obtained.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Double (Participant, Outcomes Assessor)

入排标准

年龄范围
18 Years 至 30 Years(Adult)
性别
All
接受健康志愿者

入选标准

  • Age between 18 and 30 years.
  • Presence of low back pain for less than 1 month.
  • Presence of a latent trigger point in the psoas muscle.

排除标准

  • Volunteers with low back pain caused by: Disc herniation, Tumor, Infection, Fracture, Osteoporosis, Structural deformity or Inflammation.
  • Individuals with a history of spinal surgery.
  • Continuous use of analgesics.
  • Participants who had undergone manual therapy in the previous month.
  • Pregnant individuals.
  • Obese individuals.
  • Students of Osteopathy (from the 2nd, 3rd, or 4th year) and professionals in the manual therapy field.
  • Participants presenting red flags for osteopathic intervention.
  • Individuals with cognitive impairments that hindered their ability to understand the study/project.

结局指标

主要结局

Low back pain

时间窗: Immediately after the intervention

Low back pain was evaluated using the Numeric Pain Rating Scale (NPRS), a widely used unidimensional instrument for assessing pain intensity in adults. The NPRS is a segmented numeric adaptation of the Visual Analogue Scale (VAS), consisting of a horizontal bar with 11 points, where values range from 0 ("no pain") to 10 ("worst imaginable pain"). Each participant was asked by the researcher to indicate the number, from 0 to 10, that best represented their pain level.

Range of motion

时间窗: Immediately after the intervention

Lumbar lateral flexion was assessed using a measuring tape to evaluate the distance from the third fingertip to the floor, while lumbar flexion was measured using the Modified Schober Test. For lateral flexion, the participant stood upright and performed lateral flexion to the right, with the evaluator measuring the distance from the third finger to the floor. The same procedure was repeated for the left side. The Modified Schober Test was used to assess lumbar flexion. With the participant standing, the evaluator identified the posterior superior iliac spines (PSIS) and marked a point 15 cm above it. The participant then performed maximal forward trunk flexion with knees extended, and the distance between the two marks was measured. Lumbar flexion range was the difference between the initial 15 cm and the measurement after flexion.

次要结局

未报告次要终点

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Natália Maria Oliveira Campelo

Doctor teacher

Escola Superior de Tecnologia da Saúde do Porto

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