Validity and Reliability of the DeepClinic Posture Assessment Application

July 9, 2026 updated by: Görkem Açar, Istanbul Gelisim University

Validity and Reliability of the DeepClinic Mobile Application for Postural Assessment Compared With the APECS Posture Analysis System in Physically Active Adults

Posture assessment is widely used in sports medicine, physiotherapy, and rehabilitation to identify body alignment problems and support clinical decision-making. Mobile applications have become increasingly popular because they are fast, inexpensive, and easy to use. However, these applications must be shown to provide accurate and reliable measurements before they can be recommended for clinical or sports use.

The purpose of this observational study is to evaluate the validity and reliability of the DeepClinic mobile application for posture assessment in physically active adults. Approximately 50 participants will undergo standardized posture photography from the front, back, and side views. The images will be analyzed using both the DeepClinic application and the validated APECS posture analysis system. The agreement between the two systems will be examined to determine validity. To evaluate test-retest reliability, posture assessments will be repeated after one week under the same standardized conditions.

No treatment or intervention will be provided as part of this study. The findings are expected to provide scientific evidence regarding the accuracy and reliability of the DeepClinic application and its potential use as a practical posture assessment tool in clinical practice, sports science, and rehabilitation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

50

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
      • Istanbul, Istanbul, Turkey (Türkiye), 34720
        • Istanbul Gelisim 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

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Approximately 50 physically active adults aged 18-45 years who regularly participated in sports were recruited to evaluate the validity and test-retest reliability of the DeepClinic mobile application for posture assessment. Participants were assessed under standardized testing conditions and compared with the validated APECS posture analysis system.

Description

Inclusion Criteria:

  • Adults aged 18-45 years.
  • Regular participation in sports or physical activity (minimum 3 sessions per week).
  • Able to stand independently during posture assessment.
  • Willing and able to provide written informed consent.
  • Able to complete both baseline and one-week follow-up posture assessments.

Exclusion Criteria:

  • Current musculoskeletal injury or pain affecting standing posture.
  • History of spinal, lower extremity, or neurological disorders that may influence postural alignment.
  • Previous spinal or lower extremity surgery within the past 12 months.
  • Pregnancy.
  • Inability to complete the posture assessment protocol or poor-quality photographs unsuitable for analysis.

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
Intervention / Treatment
Physically Active Adults
Approximately 50 physically active adults aged 18-45 years who regularly participated in sports were enrolled. Participants underwent standardized posture assessment using the DeepClinic mobile application and the APECS posture analysis system. The posture assessment was repeated one week later to evaluate test-retest reliability
Diagnostic test: DeepClinic Posture Assessment
Participants underwent standardized posture photography in anterior, posterior, and lateral views. Images were analyzed using the DeepClinic mobile application and compared with the validated APECS posture analysis system to evaluate validity. The same assessment protocol was repeated one week later to determine test-retest reliability.
Diagnostic test: APECS Posture Analysis System
The APECS posture analysis system served as the reference method for comparison with the DeepClinic application in assessing postural alignment.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Validity of the DeepClinic Mobile Application for Postural Assessment
Time Frame: Baseline (Day 1)
Agreement between postural measurements obtained using the DeepClinic mobile application and the validated APECS posture analysis system. Validity will be evaluated using correlation and agreement analyses for postural alignment parameters.
Baseline (Day 1)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Test-Retest Reliability of the DeepClinic Mobile Application
Time Frame: Baseline and 1 Week
Reliability of postural measurements obtained with the DeepClinic mobile application by repeating standardized posture assessments after one week. Test-retest reliability will be evaluated using intraclass correlation coefficients (ICC) and measurement error statistics.
Baseline and 1 Week
Agreement Between DeepClinic and APECS Postural Measurements
Time Frame: Baseline (Day 1)
Comparison of individual postural alignment variables measured by the DeepClinic application and the APECS posture analysis system to determine measurement agreement.
Baseline (Day 1)

Collaborators and Investigators

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

Sponsor

Istanbul Gelisim 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)

April 1, 2026

Primary Completion (Actual)

May 1, 2026

Study Completion (Actual)

May 1, 2026

Study Registration Dates

First Submitted

July 9, 2026

First Submitted That Met QC Criteria

July 9, 2026

First Posted (Actual)

July 14, 2026

Study Record Updates

Last Update Posted (Actual)

July 14, 2026

Last Update Submitted That Met QC Criteria

July 9, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • DC-POSTURE-2026-01

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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