Assessment of Shoulder Peak Torque and Fatigue Index in Individuals With Adhesive Capsulitis (AC)

April 2, 2026 updated by: Azza Mohammed, Cairo University

Biomechanical Assessment of Shoulder Peak Torque and Fatigue Index in Individuals With Adhesive Capsulitis: A Case-Control Study

Adhesive capsulitis (AC) is a common painful disorder associated with diminishing glenohumeral movement. This has led to the need for an evidence-based approach to assess the isokinetic strength and endurance of shoulder muscles in such disease conditions.The main aim of the current study was to determine whether isokinetic dynamometric values of peak torque (PT) and fatigue index of shoulder muscles are different between patients with AC in the recovery phase and the healthy subjects.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Adhesive capsulitis (AC) is a common painful disorder associated with diminishing glenohumeral movement. This has led to the need for an evidence-based approach to assess the isokinetic strength and endurance of shoulder muscles in such disease conditions.The main aim of the current study was to determine whether isokinetic dynamometric values of peak torque (PT) and fatigue index of shoulder muscles are different between patients with AC in the recovery phase and the healthy subjects.The study involved a total of sixty subjects within the age group 40 and 60 years comprising thirty in the recovery phase of AC and thirty healthy controls. The Biodex System 3 Isokinetic dynamometer was used to measure shoulder abductor, internal rotator and external rotator peak torques and fatigue indices.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
60

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

  • Egypt
    • Giza Governorate
      • Giza, Giza Governorate, Egypt, 12511
        • Faculty of Physical Therapy, Cairo University

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

In the present study, 60 participants between 40 and 60 years were recruited. They were enrolled in the experimental group, which included 30 typical subjects with unilateral AC and the control group (dominant shoulder) that included 30 healthy individuals of the same age and sex. Individuals were recruited from the outpatient clinics and respective orthopedic centers. They were informed through an advertisement poster placed on the bulletin of the mentioned locations and referred from a physician.

Description

Inclusion Criteria:

The AC group included participants that met the following criteria, based on a previous study conducted by Ramirez [2] :

  1. clinical diagnosis of unilateral AC by an orthopedic specialist, with the limitation of both active and passive glenohumeral ROM, exceeding 25% in at least two of the following planes: flexion, abduction, and external rotation
  2. symptom duration between 3 and 12 months
  3. no prior surgery to the involved shoulder
  4. age between 40 and 60 years. -The control group consisted of healthy individuals of comparable age and sex distribution with no history of shoulder pain, injury, or pathology

Exclusion Criteria:

  1. history of shoulder fracture, dislocation, or surgery;
  2. corticosteroid or muscle relaxant use within the previous three months
  3. cardiovascular or respiratory conditions that could limit physical testing
  4. concurrent participation in structured shoulder strengthening programs
  5. inability to perform the isokinetic assessment protocol safely
  6. systemic musculoskeletal, neurological or rheumatologic disorders, such as diabetes mellitus, rheumatoid arthritis and cervical radiculopathy. Individuals with diabetes mellitus were excluded due to its well-established association with AC.

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
healthy control group
30 healthy controls participated in the study
Diagnostic test: shoulder abductor, internal rotator and external rotator Isokinetic peak torques and fatigue indices
The Biodex System 3 Isokinetic dynamometer was used to measure shoulder abductor, internal rotator and external rotator peak torques and fatigue indices
group of Adhesive capsulitis (AC)
30 patients with AC participated in the study
Diagnostic test: shoulder abductor, internal rotator and external rotator Isokinetic peak torques and fatigue indices
The Biodex System 3 Isokinetic dynamometer was used to measure shoulder abductor, internal rotator and external rotator peak torques and fatigue indices

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
shoulder abductor peak torque
Time Frame: one year
shoulder abductor isokinetic peak torque
one year
shoulder internal rotator peak torque
Time Frame: one year
shoulder internal rotator isokinetic peak torque
one year
shoulder external rotator peak torque
Time Frame: one year
shoulder external rotator isokinetic peak torque
one year
shoulder abductor fatigue index
Time Frame: one year
shoulder abductor isokinetic fatigue index
one year
shoulder internal rotator fatigue index
Time Frame: one year
shoulder internal rotator isokinetic fatigue index
one year
shoulder external rotator fatigue index
Time Frame: one year
shoulder external rotator isokinetic fatigue index
one year

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Cairo University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Azza M, professor, Cairo University

Publications and helpful links

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Helpful Links

Study record dates

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Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 20, 2015

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 10, 2016

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 3, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 27, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 2, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 9, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 9, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 2, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • P.T.REC/012/006256

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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