The Relationship Between Thoracic Kyphosis Angle and Shoulder Pain

January 16, 2026 updated by: Doç.Dr.Ömer Şevgin, Uskudar University

The Relationship Between Thoracic Kyphosis Angle and Shoulder Pain, Range of Motion, Isokinetic Muscle Strength, and Functionality

This study aimed to investigate the correlation between increased thoracic kyphosis and these factors.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Thoracic kyphosis angle was assessed with a manual inclinometer, shoulder pain severity with a Visual Analog Scale, shoulder range of motion with a manual goniometer, shoulder isokinetic strength with an isokinetic dynamometer, and upper extremity function with the Quick Disability of the Arm, Shoulder, and Hand questionnaire.

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
      • Istanbul, Turkey (Türkiye)
        • Sportomed Physical Therapy and Rehabilitation Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion criteria:

  • Being between 18 and 60 years of age,
  • Having a thoracic kyphosis angle greater than 40°,
  • Voluntary participation in the study.

Exclusion criteria:

  • Having a diagnosis of neuromuscular disorder of the spine and upper extremities,
  • Having received treatment for any spinal cord or upper extremity pathology in the last year,
  • Systemic diseases or connective tissue disorders,
  • Being pregnant.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Thoracic Kyphosis
The group of participants to be evaluated
Other: Thoracic Kyphosis isokinetic measurement
Thoracic kyphotic angle was assessed by manual The group of participants to be evaluated, shoulder pain severity by Visual Analog Scale, shoulder range of motion by manual goniometer, shoulder isokinetic strength by isokinetic dynamometer, and upper extremity functionality by Quick Disability of the Arm, Shoulder, and Hand questionnaire.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Assessment of the angle of thoracic kyphosis
Time Frame: 1 week
Participants' thoracic kyphosis angle was assessed using two gravity-dependent manual inclinometers (Isomed Inc. 975 Sandy Blvd, Portland, USA). The manual inclinometer is a valid and reliable method used to measure range of motion and postural curvatures of the spine. During the measurement process, the feet of the inclinometers were positioned on the spinal protrusions that were identified as corresponding to the first and second thoracic vertebrae (T1/2) and the twelfth thoracic and first lumbar vertebrae (T12/L1). Spinal levels were determined through palpation while the subjects were in a natural standing position.
1 week
Visual Analog Scale
Time Frame: 1 week
Participants' pain intensity was evaluated with the Visual Analog Scale , which consists of a 100 mm long, fixed horizontal line.Visual Analog Scale is considered one of the best available methods that are valid and reliable for estimating pain intensity. Participants were asked to mark the point representing the severity of shoulder pain in their current situation. The Visual Analog Scale score was determined by measuring the end of the line from the left beginning to the point marked by the patient, in millimeters
1 week

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Uskudar University

Investigators

  • Study Chair: Yağmur Yarayan, Uskudar University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 1, 2022

Primary Completion (Actual)

July 25, 2022

Study Completion (Actual)

September 30, 2022

Study Registration Dates

First Submitted

January 8, 2026

First Submitted That Met QC Criteria

January 8, 2026

First Posted (Estimated)

January 16, 2026

Study Record Updates

Last Update Posted (Actual)

January 20, 2026

Last Update Submitted That Met QC Criteria

January 16, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Uskudar81

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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