Development of the Muscle Architecture Based Isokinetic Strength Assessment Position for Shoulder Rotator Muscles

February 11, 2021 updated by: caglar soylu, Ankara Yildirim Beyazıt University
Today, the most commonly used position is the seated position with 45° of shoulder abduction (Abd) in the scapular plane, known as the most functional isokinetic assessment of shoulder-rotator strength (1). However, considering the architectural feature of the rotator muscles, a position where the maximum sarcomere length is obtained, in which the maximum muscle strength is produced, has not been investigated. Ward et al. showed that the shoulder position, in which the sarcomere length of the muscles was between 2.0 - 2.6 µm, was 25⁰ Abd and 20⁰ external rotation (ER) as a result of their study on the rotator cuff muscles architecture (2). The test position selected in isokinetic measurements is the main factor for outcome measurements and the repeatability of the measurements directly depends on the selected position (3). This study was planned to investigate the effects of the position where the shoulder is at 25⁰ Abd and 20⁰ ER to develop the most suitable isokinetic strength evaluation position based on muscle architecture for shoulder rotator muscles.Using IsoMed 2000 device (D. & R. Ferstl GmbH, Hemau, Germany) we conducted the isokinetic test of concentric (CON) and eccentric (ECC) shoulder internal (IR) and external (ER) strength at the angular velocity of 60˚/s in both Method I (scapular position) and Method II (25⁰ Abd and 20⁰ ER). There were seven days between the testing sessions, and both tests were conducted at the same time of day. The same examiner with experience in performing isokinetic testing with IsoMed 2000 tested all subjects in both testing sessions

Study Overview

Status

Status

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

Conditions

Conditions

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Intervention / Treatment

Intervention / Treatment

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Study Type

Study Type

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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.
52

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
    • Etlik
      • Ankara, Etlik, Turkey, 06010
        • Ankara Yıldırım Beyazıt University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation

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

18 years to 25 years (Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

Male

Sampling Method

Probability Sample

Study Population

healthy male subjects

Description

Inclusion Criteria:

  • Being between the ages of 18-25
  • Body mass index (BMI) being between 18.5-24.9 kg / m 2
  • Volunteering to participate in the study
  • Having the skills to do the tests and exercises to be applied

Exclusion Criteria:

  • Having a history of upper extremity injury within the past year
  • Having a sensory problem that prevents participation in the study
  • Have any musculoskeletal, neurological, respiratory, or cardiovascular risk factors that limit exercise
  • Having a history of malignant disease

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

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
concentric shoulder internal rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method I (scapular position)
Time Frame: Six month
concentric shoulder internal rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method I (scapular position)
Six month
concentric shoulder external rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method I (scapular position)
Time Frame: Six month
concentric shoulder external rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method I (scapular position)
Six month
concentric shoulder internal rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method II (25⁰ Abd and 20⁰ ER)
Time Frame: Six month
concentric shoulder internal rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method II (25⁰ Abd and 20⁰ ER)
Six month
concentric shoulder external rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method II (25⁰ Abd and 20⁰ ER)
Time Frame: Six month
concentric shoulder external rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method II (25⁰ Abd and 20⁰ ER)
Six month
eccentric shoulder internal rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method I (scapular position)
Time Frame: Six month
eccentric shoulder internal rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method I (scapular position)
Six month
eccentric shoulder external rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method I (scapular position)
Time Frame: Six month
eccentric shoulder external rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method I (scapular position)
Six month
eccentric shoulder internal rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method II (25⁰ Abd and 20⁰ ER)
Time Frame: Six month
eccentric shoulder internal rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method II (25⁰ Abd and 20⁰ ER)
Six month
eccentric shoulder external rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method II (25⁰ Abd and 20⁰ ER)
Time Frame: Six month
eccentric shoulder external rotation peak torque and peak torque/weight at the angular velocity of 60˚/s in Method II (25⁰ Abd and 20⁰ ER)
Six month

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.
Ankara Yildirim Beyazıt 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: Caglar Soylu, PhD, Ankara Yildirim Beyazıt University

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)

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.
November 15, 2019

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.
January 15, 2020

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.
May 15, 2020

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).
February 11, 2021

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.
February 11, 2021

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.
February 16, 2021

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.
February 16, 2021

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.
February 11, 2021

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.
February 1, 2021

More Information

Terms related to this study

Keywords

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.
  • 2019-367

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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