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Central Sensitization and Functional Outcomes in Chronic Shoulder Pain (SHOULDER-CS)

13 juni 2026 bijgewerkt door: Ayşenur Yılmaz, Pamukkale University

The Effects of Central Sensitization and Psychological Factors on Functional Outcomes Following Rehabilitation in Individuals With Chronic Shoulder Pain

This prospective observational cohort study aims to investigate whether baseline central sensitization and psychological factors predict functional outcomes following rehabilitation in individuals with chronic shoulder pain. Participants with chronic shoulder pain will receive a standardized 6-week physiotherapy and rehabilitation program routinely applied in the clinic. Assessments will be performed before and after treatment, including pain severity, shoulder function, central sensitization symptoms, and psychological factors such as pain catastrophizing. The findings of this study may contribute to a better understanding of biopsychosocial factors affecting rehabilitation outcomes in chronic shoulder pain and help improve individualized rehabilitation approaches.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Chronic shoulder pain is one of the most common musculoskeletal disorders and is associated with pain, functional limitations, reduced quality of life, and work disability. Although structural abnormalities are often identified in clinical evaluation and imaging findings, the relationship between tissue pathology and symptom severity is not always clear. Therefore, factors beyond peripheral tissue damage may contribute to persistent shoulder pain and rehabilitation outcomes.

In recent years, central sensitization has become an important concept in chronic musculoskeletal pain conditions. Central sensitization refers to increased responsiveness of the central nervous system to sensory input, resulting in pain hypersensitivity and amplification of pain perception. Previous studies have demonstrated that individuals with chronic shoulder pain may present with symptoms related to central sensitization, which can negatively affect pain severity, disability, and treatment response.

Psychological factors such as pain catastrophizing, fear of movement, anxiety, and depression are also known to influence chronic pain experiences and rehabilitation outcomes. Higher levels of maladaptive psychological responses may contribute to increased pain perception, reduced treatment adherence, and poorer functional recovery. However, prospective studies evaluating the combined influence of central sensitization and psychological factors on rehabilitation outcomes in chronic shoulder pain remain limited.

This study is designed as a prospective observational cohort study. Individuals with chronic shoulder pain attending physiotherapy rehabilitation clinics will be recruited. Participants will undergo baseline assessments before treatment and follow-up assessments after a standardized 6-week rehabilitation program routinely applied in clinical practice.

The primary objective is to determine whether baseline central sensitization and psychological factors predict functional improvement following rehabilitation. The findings may contribute to a better understanding of the biopsychosocial mechanisms underlying treatment response and support the development of more individualized rehabilitation strategies for chronic shoulder pain management.

Studietype

Observationeel

Inschrijving (Geschat)

59

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Nee

Bemonsteringsmethode

Niet-waarschijnlijkheidssteekproef

Studie Bevolking

Adults with chronic shoulder pain who are referred to physiotherapy and rehabilitation clinics and scheduled to receive a standardized 6-week physiotherapy rehabilitation program. Participants will include individuals with shoulder pain associated with conditions such as rotator cuff-related shoulder pain, subacromial pain syndrome, and adhesive capsulitis.

Beschrijving

Inclusion Criteria:

  • Adults aged 18 years and older
  • Presence of chronic shoulder pain lasting at least 3 months
  • Clinical findings consistent with shoulder-related pain
  • Willingness to participate in a 6-week physiotherapy rehabilitation program
  • Ability to complete study assessments and questionnaires
  • Provision of written informed consent

Exclusion Criteria:

  • History of shoulder surgery within the previous 6 months
  • Major shoulder trauma within the previous 6 months
  • Serious pathology affecting the shoulder (e.g., infection, tumor, systemic inflammatory disease)
  • Neurological disorders affecting the upper extremity (e.g., cervical radiculopathy, myelopathy, peripheral nerve injury)
  • Severe cognitive impairment
  • Communication problems preventing participation
  • Shoulder injection within the previous 4 weeks
  • Pregnancy

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

Cohorten en interventies

Groep / Cohort
Interventie / Behandeling
Physiotherapy Rehabilitation Program
A standardized 6-week exercise-based physiotherapy and rehabilitation program including patient education, scapular stabilization exercises, strengthening exercises, range of motion exercises, functional training, and home exercise recommendations routinely applied in clinical practice.
Ander: Physiotherapy Rehabilitation Program
A standardized 6-week exercise-based physiotherapy and rehabilitation program routinely applied in clinical practice, including patient education, scapular stabilization exercises, strengthening exercises, range of motion exercises, functional training, and home exercise recommendations for individuals with chronic shoulder pain.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Shoulder Pain and Disability Index (SPADI)
Tijdsspanne: Baseline and 6 weeks after rehabilitation
The Shoulder Pain and Disability Index (SPADI) is a validated questionnaire used to assess shoulder pain and disability. Total scores range from 0 to 100, with higher scores indicating greater pain and disability.
Baseline and 6 weeks after rehabilitation

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Central Sensitization Inventory (CSI)
Tijdsspanne: Baseline and 6 weeks after rehabilitation
The Central Sensitization Inventory is a self-reported questionnaire assessing symptoms related to central sensitization. Scores range from 0 to 100, with higher scores indicating greater central sensitization symptoms.
Baseline and 6 weeks after rehabilitation
Pain Catastrophizing Scale (PCS)
Tijdsspanne: Baseline and 6 weeks after rehabilitation
The Pain Catastrophizing Scale (PCS) assesses exaggerated negative thoughts and emotional responses related to pain. Total scores range from 0 to 52, with higher scores indicating greater pain catastrophizing.
Baseline and 6 weeks after rehabilitation
Pain Intensity (Visual Analog Scale)
Tijdsspanne: Baseline and 6 weeks after rehabilitation
Pain intensity will be assessed using a Visual Analog Scale (VAS) ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate greater pain intensity.
Baseline and 6 weeks after rehabilitation
Shoulder Range of Motion
Tijdsspanne: Baseline and 6 weeks after rehabilitation
Shoulder range of motion will be assessed using standard goniometric measurements. Higher values indicate greater shoulder joint mobility.
Baseline and 6 weeks after rehabilitation
Shoulder Muscle Strength
Tijdsspanne: Baseline and 6 weeks after rehabilitation
Shoulder muscle strength will be evaluated using standardized clinical strength assessment procedures. Higher values indicate greater muscle strength.
Baseline and 6 weeks after rehabilitation

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Pamukkale University

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

15 juni 2026

Primaire voltooiing (Geschat)

30 juli 2026

Studie voltooiing (Geschat)

1 augustus 2026

Studieregistratiedata

Eerst ingediend

4 juni 2026

Eerst ingediend dat voldeed aan de QC-criteria

13 juni 2026

Eerst geplaatst (Werkelijk)

17 juni 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

17 juni 2026

Laatste update ingediend die voldeed aan QC-criteria

13 juni 2026

Laatst geverifieerd

1 juni 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Andere studie-ID-nummers

  • CS-Shoulder-2026

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Beschrijving IPD-plan

Individual participant data will not be publicly shared due to privacy and confidentiality considerations. De-identified data may be available from the principal investigator upon reasonable request and with appropriate ethical approval.

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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