THE USE OF TWO DIFFERENT SMARTPHONE APPLICATIONS IN MEASURING SAGITTAL SPINAL CURVATURE

April 3, 2026 updated by: Esra BAYRAMOĞLU DEMİRDÖĞEN, Ahi Evran University Education and Research Hospital

AN INVESTIGATION OF THE INTRA- AND INTER-RATER RELIABILITY OF TWO DIFFERENT SMARTPHONE APPLICATIONS USED IN THE MEASUREMENT OF SAGITTAL SPINAL CURVATURE

This study will include healthy volunteers aged 18-25 years. Demographic information will be recorded, and an experienced physiotherapist will mark five reference points on the spine of the participants, starting from the cervical spine and extending to the lumbar spine. Angle measurements will then be taken from these five reference points using a gravity inclinometer, an Android smartphone, and an iOS phone. Measurements will be repeated twice on the same day and twice again 24-48 hours later using three different devices. The accuracy and similarity of the measurements taken with these three devices will then be compared.

Study Overview

Status

Not yet recruiting

Conditions

Study Type

Observational

Enrollment (Estimated)

60

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

healthy older individuals

Description

Inclusion Criteria:

  • Being over 18 years of age,
  • being able to stand and walk without an assistive device,
  • not having experienced back pain or lower extremity pain in the last 6 months,
  • and being willing to participate in the study.

Exclusion Criteria:

  • Lack of consent,
  • lower extremity injuries (dislocation, sprain) within one month prior to measurement,
  • lower extremity fractures within the last 6 months,
  • tactile sensitivity that prevents the adoption of a free and habitual posture.

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

Outcome Measure
Measure Description
Time Frame
Assessment of Spinal Curvature
Time Frame: Two measurements taken 10 minutes apart.
Description: The following 5 parameters were used for the measurement: 1. ALPHA 1 angle of sacrum (upper beam of the inclinometer, in the middle of the intervertebral space, on the line connecting the posterior superior iliac crests). 2. ALPHA 2 angle - sacrolumbar junction S/L (center of the inclinometer on the line connecting the posterior superior iliac crests). 3. BETA angle - Th12-L1 thoracolumbar junction (center of the inclinometer at the thoracolumbar junction). 4. GAMMA angle - C7-Th1 (center of the inclinometer on C7). 5. DELTA angle - Th3-Th4 (upper beam of the inclinometer at the height of the upper angle of the scapula).
Two measurements taken 10 minutes apart.

Collaborators and Investigators

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

Sponsor

Ahi Evran University Education and Research Hospital

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 (Estimated)

March 14, 2026

Primary Completion (Estimated)

April 15, 2026

Study Completion (Estimated)

April 30, 2026

Study Registration Dates

First Submitted

March 30, 2026

First Submitted That Met QC Criteria

March 30, 2026

First Posted (Actual)

April 3, 2026

Study Record Updates

Last Update Posted (Actual)

April 8, 2026

Last Update Submitted That Met QC Criteria

April 3, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • KAEU-EBAYRAMOGLUD-006

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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