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Elbow Joint InjuriesNCT06821165

Validity and Reliability of Dr. Goniometer in Elbow Flexion

An observational study of Elbow Joint Injuries, run by University of Beykent.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

This study aims to evaluate the validity and reliability of the Dr. Goniometer application for measuring elbow flexion by comparing it with a manual goniometer. Conducted at Beykent University, the study will include 60 participants without upper extremity issues. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Elbow Joint Injuries
What is being tested?
Dr. Goniometer Application
How many people
60 participants
Where
No sites listed yet
Study dates
1 Mar 2025to 1 Jul 2025
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: The study population consists of healthy adults aged 18-65 who have no history of musculoskeletal, neurological, or orthopedic disorders affecting the upper extremity. Participants will be recruited voluntarily from the general population and must be able to provide informed consent and follow verbal instructions.

Who may be able to join

  • Aged between 18 and 65 years
  • No history of musculoskeletal, neurological, or orthopedic conditions
  • Voluntary participation

Who cannot join

  • History of musculoskeletal, neurological, or orthopedic disorders affecting the upper extremity.
  • Previous upper extremity trauma, surgery, or chronic pain limiting range of motion.
  • Inability to provide informed consent or follow verbal instructions.

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Yasemin ŞAHBAZ, Asst. Prof. contact

05455649695

yaseminsahbaz@beykent.edu.tr

About this study

Official title: Validity and Reliability Analysis of the Dr. Goniometer Application in Elbow Flexion Measurements

This study aims to evaluate the validity and reliability of the Dr. Goniometer application for measuring elbow flexion by comparing it with a manual goniometer. Conducted at Beykent University, the study will include 60 participants without upper extremity issues. Measurements will be taken on the dominant arm using both a manual goniometer and Dr. Goniometer, each repeated twice. Dr. Goniometer measurements will be performed twice by two different evaluators. Validity will be assessed using the Pearson correlation coefficient, while reliability will be evaluated with ICC and SEM. Measurement differences will be analyzed using a paired t-test. The results will contribute to determining the clinical applicability of the Dr. Goniometer application.

Read the detailed description

This study is designed to assess both the validity and reliability of the Dr. Goniometer application for measuring elbow flexion. To do this, the study will compare the measurements taken using the Dr. Goniometer with those obtained using a manual goniometer, which is the standard tool typically used for such measurements.

Study Design and Participants:

The research will be conducted at Beykent University and will involve 60 participants. These individuals will be healthy and will not have any upper extremity issues (meaning they do not have any conditions affecting their arms).

The dominant arm of each participant will be used for measurement purposes. The dominant arm is the arm most commonly used for tasks like writing or eating.

Measurement Process:

Each participant's elbow flexion will be measured using both the manual goniometer and the Dr. Goniometer application.

The measurements will be taken twice using each tool, ensuring that there is a repetition for both the Dr. Goniometer and the manual goniometer.

Additionally, the Dr. Goniometer measurements will be performed twice by two different evaluators. This step is included to ensure that the measurements are consistent and to assess inter-rater reliability (the degree to which two different evaluators get the same results).

Statistical Analysis:

Validity will be assessed by calculating the Pearson correlation coefficient. This coefficient will measure the degree to which the measurements from the Dr. Goniometer correspond to the measurements from the manual goniometer. A high correlation would indicate that the Dr. Goniometer is valid and produces results similar to the established manual goniometer.

Reliability will be evaluated using two methods:

Intraclass Correlation Coefficient (ICC): This will assess the consistency or agreement of measurements taken with the same tool (e.g., using the Dr. Goniometer application multiple times by the same or different evaluators).

Standard Error of Measurement (SEM): This will measure the precision of the measurements and help understand the typical error expected in the measurements.

Measurement differences between the two tools (Dr. Goniometer and manual goniometer) will be analyzed using a paired t-test. This test will help determine whether there are any statistically significant differences between the measurements obtained from the two devices. If there is a significant difference, it could suggest that one tool is more accurate than the other or that they produce inconsistent results.

Expected Outcome:

The study will aim to determine whether the Dr. Goniometer application is clinically applicable. By assessing both its validity (how well it measures what it is intended to measure) and its reliability (how consistent and precise it is), the results will provide insight into whether this mobile application can be used effectively in clinical settings as a tool for measuring elbow flexion. If the application is found to be both valid and reliable, it could offer a convenient and accessible alternative to the traditional manual goniometer.

Being tested
Dr. Goniometer Application
Medical subject headings
Elbow Injuries

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Dr. Goniometer ApplicationOther

    The Dr. Goniometer application is a digital tool used for measuring elbow flexion range of motion (ROM). In this study, participants' elbow flexion ROM will be assessed using both the Dr. Goniometer application and a manual goniometer. Measurements will be taken twice by two different raters to evaluate the validity and reliability of the digital application compared to the manual goniometer.

Study groups in NCT06821165
Study groupRoleWhat they receive
Elbow Flexion Measurement GroupParticipants in this group will undergo elbow flexion range of motion (ROM) assessment using both a manual goniometer and the Dr. Goniometer application. Each participant's measurements will be taken twice. The measurements will be conducted twice by two different evaluators, and the average values will be analyzed to determine the validity and reliability of the Dr. Goniometer application compared to the manual goniometer.
Receives: Other: Dr. Goniometer Application

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Validity and Reliability of Dr. Goniometer in Elbow Flexion Measurements

    Comparison of elbow flexion range of motion measurements obtained using the Dr. Goniometer application and a universal goniometer to assess validity and reliability. Measurements will be taken by three independent raters, and intra-rater and inter-rater reliability will be analyzed using ICC and SEM. Pearson correlation will be used to determine validity.

    Measured: Baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Feb 2025
  2. Study start1 Mar 2025 (estimated)
  3. Primary completion1 May 2025 (estimated)
  4. Study completion1 Jul 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Cross-sectional
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06821165
Sponsor's protocol ID
UBeykent-12
Status last verified
Feb 2025
First submitted
6 Feb 2025
Last updated
25 Feb 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Gajdosik RL, Bohannon RW. Clinical measurement of range of motion. Review of goniometry emphasizing reliability and validity. Phys Ther. 1987 Dec;67(12):1867-72. doi: 10.1093/ptj/67.12.1867.

    PubMed 3685114
  • Jee H, Park J. Comparative Analyses of the Dominant and Non-Dominant Upper Limbs during the Abduction and Adduction Motions. Iran J Public Health. 2019 Oct;48(10):1768-1776.

    PubMed 31850253
  • Rothstein JM, Miller PJ, Roettger RF. Goniometric reliability in a clinical setting. Elbow and knee measurements. Phys Ther. 1983 Oct;63(10):1611-5. doi: 10.1093/ptj/63.10.1611.

    PubMed 6622536

Questions about this trial

What is this clinical trial studying?

An observational study of Elbow Joint Injuries, run by University of Beykent.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 25 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Yasemin ŞAHBAZ, Asst. Prof. (05455649695, yaseminsahbaz@beykent.edu.tr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Validity and Reliability of Dr. Goniometer in Elbow Flexion Measurements (time frame: Baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06821165, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Feb 2025.

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