Psoas Major Muscle Intervention on Chronic Lumbar Pain in Cleaning Professionals.
2026年6月25日 更新者：Natália Maria Oliveira Campelo、Escola Superior de Tecnologia da Saúde do Porto
Influence of the Stretching Technique on the Psoas Major Muscle on Chronic Lumbar Pain in Cleaning Professionals: Randomized Controlled Trial.
The goal of this randomized controlled trial is to determine the effect of a psoas major muscle intervention on non-specific and chronic lumbar pain in cleaning professionals.
It is expected that this intervention will reduce the severity and frequency of symptoms.
This study aims to evaluate the effect of psoas major stretching techniques.
To collect data, participants will rate their pain intensity on a numeric pain scale at rest and during maximal lumbar flexion.
Secondary variables include lumbar flexion range of motion (ROM), assessed by the Schöber test, and hip ROM, which will be measured before and after the intervention using a digital goniometer.
研究概览
详细说明
Cleaning professionals are particularly vulnerable to musculoskeletal pain, predominantly low back pain due to intense occupational hazards like repetitive movements, heavy lifting in awkward postures, and prolonged standing. The psoas major muscle plays a critical role in this clinical context; morphological changes, such as muscle atrophy and fat infiltration, are commonly observed in low back pain patients. Furthermore, a shortened or asymmetrical psoas alters spinal biomechanics-often increasing lumbar lordosis and overloading facet joints-which strongly predisposes individuals to chronic pain and instability. Furthermore, a shortened or asymmetrical psoas alters spinal biomechanics-often increasing lumbar lordosis and overloading facet joints-which strongly predisposes individuals to chronic pain and instability.
This study aims to highlight the biomechanical importance of the iliopsoas muscle and evaluate the therapeutic impact of the stretching technique in reducing symptoms, improving mobility, and preventing functional limitations associated with iliopsoas dysfunction.
研究类型
介入性
注册 (估计的)
30
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习联系方式
- 姓名：Natália MO Campelo, PhD
- 电话号码：+351 222 061 000
- 邮箱：nmc@ess.ipp.pt
学习地点
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Porto、葡萄牙、4200-072
- Escola Superior de Saúde do Porto
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接触：
- Natália MO Campelo, PhD
- 电话号码：+35122 206 1000
- 邮箱：nmc@ess.ipp.pt
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参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
- 成人
- 年长者
接受健康志愿者
不
描述
Inclusion Criteria:
- Being a cleaning professional for at least 4 years
- Report at least 1 episode of lumbar pain in the last 3 months
Exclusion Criteria:
- Any severe spinal condition (such as spondylolisthesis, spine fracture, etc.)
- Any severe neurological or rheumatological condition
- Pregnancy
- Daily use of pain medication
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：双倍的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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安慰剂比较：控制组
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Patient is positioned supine at the edge of the table.
The investigator places one hand on the participant's ipsilateral knee without applying any pressure or force, and the other hand on the contralateral knee for stabilization.
This position is maintained for 30 seconds to match the duration of the experimental intervention.
The technique was performed bilaterally (once on each side) to the control group.
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实验性的：Experimental group
Psoas major stretching
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The patient is positioned supine at the edge of the table.
The investigator places their hands on both of the participant's knees, applying gentle downward pressure on the ipsilateral knee to stretch the psoas major muscle.
This stretch is held for 30 seconds and performed bilaterally (once on each side) to the experimental group.
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
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Low Back Pain Intensity at Rest Assessed Using the Numeric Pain Rating Scale (NPRS, 0-10)
大体时间：Baseline and immediately after completion of the intervention.
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Low back pain intensity at rest will be assessed using the Numeric Pain Rating Scale (NPRS), a self-reported scale ranging from 0 to 10, where 0 indicates "no pain" and 10 indicates "worst imaginable pain."
Higher scores indicate greater pain intensity and therefore a worse outcome.
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Baseline and immediately after completion of the intervention.
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
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Lumbar Range of Motion Assessed Using the Schober Test
大体时间：Baseline and immediately after completion of the intervention.
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Lumbar range of motion (ROM) will be assessed using the Schober Test at rest and during anterior lumbar flexion.
The test measures lumbar spine mobility by quantifying the increase in distance between predefined anatomical landmarks during trunk flexion.
Higher values indicate greater lumbar mobility and therefore a better outcome.
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Baseline and immediately after completion of the intervention.
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Hip Flexion Range of Motion Assessed Using a Digital Goniometer
大体时间：Baseline and immediately after completion of the intervention.
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Hip flexion range of motion (ROM) will be assessed with the participant in the supine position using a digital goniometer.
Measurements will be recorded in degrees (°).
Higher values indicate greater hip flexion mobility and therefore a better outcome.
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Baseline and immediately after completion of the intervention.
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Natália MO Campelo、ESS
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
一般刊物
- Koes BW, van Tulder MW, Thomas S. Diagnosis and treatment of low back pain. BMJ. 2006 Jun 17;332(7555):1430-4. doi: 10.1136/bmj.332.7555.1430. No abstract available.
- Pourahmadi M, Asadi M, Dommerholt J, Yeganeh A. Changes in the macroscopic morphology of hip muscles in low back pain. J Anat. 2020 Jan;236(1):3-20. doi: 10.1111/joa.13086. Epub 2019 Sep 1.
- Abdol Rahman, M. N., Muhamad Jaffar, M. S., Hassan, M. F., Ngali, M. Z., & Pauline, O. Exposure level of ergonomic risk factors in hotel industries. IOP Conference Series: Materials Science and Engineering. 2017. 226, 012018.
- Badarin K, Hemmingsson T, Hillert L, Kjellberg K. Physical workload and increased frequency of musculoskeletal pain: a cohort study of employed men and women with baseline occasional pain. Occup Environ Med. 2021 Jan 17;78(8):558-66. doi: 10.1136/oemed-2020-107094. Online ahead of print.
- Mallio CA, Russo F, Vadala G, Papalia R, Pileri M, Mancuso V, Bernetti C, Volpecina M, Di Gennaro G, Beomonte Zobel B, Denaro V. The importance of psoas muscle on low back pain: a single-center study on lumbar spine MRI. N Am Spine Soc J. 2024 May 1;18:100326. doi: 10.1016/j.xnsj.2024.100326. eCollection 2024 Jun.
- Scherzer T, Rugulies R, Krause N. Work-related pain and injury and barriers to workers' compensation among Las Vegas hotel room cleaners. Am J Public Health. 2005 Mar;95(3):483-8. doi: 10.2105/AJPH.2003.033266.
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (估计的)
2026年7月1日
初级完成 (估计的)
2026年8月1日
研究完成 (估计的)
2026年9月1日
研究注册日期
首次提交
2026年6月7日
首先提交符合 QC 标准的
2026年6月25日
首次发布 (实际的)
2026年6月26日
研究记录更新
最后更新发布 (实际的)
2026年6月26日
上次提交的符合 QC 标准的更新
2026年6月25日
最后验证
2026年6月1日
更多信息
与本研究相关的术语
其他研究编号
- OST1-022
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)？
不
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研究美国 FDA 监管的药品
不
研究美国 FDA 监管的设备产品
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