Psoas Major Muscle Intervention on Chronic Lumbar Pain in Cleaning Professionals.
25. juni 2026 opdateret af: 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.
Studieoversigt
Status
Ikke rekrutterer endnu
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
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.
Undersøgelsestype
Interventionel
Tilmelding (Anslået)
30
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiekontakt
- Navn: Natália MO Campelo, PhD
- Telefonnummer: +351 222 061 000
- E-mail: nmc@ess.ipp.pt
Studiesteder
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Porto, Portugal, 4200-072
- Escola Superior de Saúde do Porto
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Kontakt:
- Natália MO Campelo, PhD
- Telefonnummer: +35122 206 1000
- E-mail: nmc@ess.ipp.pt
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ingen
Beskrivelse
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
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Dobbelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Placebo komparator: Kontrolgruppe
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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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Eksperimentel: 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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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Low Back Pain Intensity at Rest Assessed Using the Numeric Pain Rating Scale (NPRS, 0-10)
Tidsramme: 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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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Lumbar Range of Motion Assessed Using the Schober Test
Tidsramme: 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
Tidsramme: 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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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Efterforskere
- Ledende efterforsker: Natália MO Campelo, ESS
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- 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.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Anslået)
1. juli 2026
Primær færdiggørelse (Anslået)
1. august 2026
Studieafslutning (Anslået)
1. september 2026
Datoer for studieregistrering
Først indsendt
7. juni 2026
Først indsendt, der opfyldte QC-kriterier
25. juni 2026
Først opslået (Faktiske)
26. juni 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
26. juni 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
25. juni 2026
Sidst verificeret
1. juni 2026
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- OST1-022
Plan for individuelle deltagerdata (IPD)
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