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Comparison of Smartphone-Based 3D Body Measurements With Traditional Anthropometry and 4D Stereophotogrammetry

Comparison of Smartphone-Based 3D Body Measurements With Traditional Anthropometry and 4D Stereophotogrammetry: Reliability, Validity, and Accuracy in Healthy Adults

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07589998
Enrollment
35
Registered
2026-05-15
Start date
2025-11-11
Completion date
2026-02-16
Last updated
2026-05-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anthropometry, Body Composition, Smartphone, Three Dimension

Brief summary

This study investigates the accuracy, validity and reliability of smartphone-based 3D body scanning applications compared with traditional anthropometric measurements and a 4D stereophotogrammetry system.

Detailed description

This study evaluates how accurately smartphone-based 3D body scanning applications can measure the human body compared with traditional anthropometric measurements and a 4D stereophotogrammetry system. Thirty-five healthy adults undergo body measurements using three methods: conventional tape and stadiometer measurements, smartphone-based 3D scanning applications (3D Measure Me and MeThreeSixty), and a 4D stereophotogrammetry scan used as a reference method. The study examines the reliability, validity, and accuracy of these technologies by comparing measurements such as body lengths, circumferences, and body proportions across methods. The goal is to determine whether smartphone-based body scanning applications can provide clinically useful and accessible alternatives to traditional anthropometric measurements in healthcare and rehabilitation settings.

Interventions

DIAGNOSTIC_TESTSmartphone-Based 3D Body Scanning

Participants undergo anthropometric assessment using three different measurement methods: traditional anthropometric measurements, smartphone-based 3D body scanning applications, and a 4D stereophotogrammetry system. Traditional measurements include the use of a measuring tape, stadiometer, and weight scale. Smartphone-based measurements are performed using the 3D Measure Me and MeThreeSixty applications on a smartphone device. The 4D stereophotogrammetry system is used as the reference scanning method to generate a full-body digital avatar. All measurements are collected during a single study visit to evaluate the validity, reliability, and accuracy of the different body measurement techniques in healthy adults.

Sponsors

Femke Van Orden
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

Inclusion criteria

* Human adults * iPhone * Samsung * Smartphone * 4D stereophotogrammetry * Traditional anthropometrics * Whole body * Shape * Avatar

Exclusion criteria

* Children * Animals * X-ray * MRI * CT * Surgery * Dental * Geographical mapping * Non-digital human * Body parts * Skeleton body

Design outcomes

Primary

MeasureTime frameDescription
Waist height10 and 16 February 2026Length waist to floor (SIAS) in mm
Waist to knee height10 and 16 February 2026Vertical length from waist to middle of knee cap in mm
Knee height10 and 16 February 2026Length from the top of the knee to the bottom of the foot in mm
Outer arm in10 and 16 February 2026Arm length from bone at top edge of shoulder to elbow to wrist just below wrist bone in mm
Foot length10 and 16 FebruaryLength from back of heel to tip of longest toe in mm
height10 and 16 February 2026Height from top of head to floor in mm
Neck girth10 and 16 February 2026Circumference around neck over Adams apple following natural curve in mm
Hip girth10 and 16 February 2026Circumference at widest point of bum from side view in mm
Belly girth10 and 16 February 2026Circumference at belly button in mm
Bust girth10 and 16 February 2026Circumference around chest beneath armpits and in line with nipples in mm
Under bust girth10 and 16 February 2026Circumference just under bust in mm
Back arm pit contour10 and 16 February 2026Distance armpit to armpit straight across the back without going into the armpit in mm
Forearm girth10 and 16 February 2026Circumference at largest point on forearm in mm
Wrist girth10 and 16 February 2026Circumference just below wrist bone in mm
Thigh girth10 and 16 February 2026Circumference measurement taken 1cm below the gluteal line or fold in mm
Knee girth10 and 16 February 2026Circumference around knee cap at the widest point in mm
Ankle girth10 and 16 February 2026Circumference at the narrowest point of the ankle in mm
Upper arm girth10 and 16 February 2026Bicep circumference at upper arm mid-point in mm

Secondary

MeasureTime frameDescription
Type of clothing10 and 16 February 2026Loose or tight
Skin Colour10 and 16 February 2026light, medium or dark
Movement10 and 16 February 2026no movement or slight movement
Belly height10 and 16 February 2026Vertical distance from waist to abdomen in mm
Bust height10 and 16 February 2026Distance from base of neck down to the centre of the fullest part of bust in mm
Armspan10 and 16 February 2026Lenght from one end of a person's arms (measured at the middle fingertips) to the other when arms raised parallel to the ground at shoulder height at 90° angle in mm
Head girth10 and 16 February 2026Circumference from slightly above eyebrows above the ears and over the occipital prominence and the back of the head (with a bathing cap) in mm
Bust width10 and 16 February 2026Length from the left armpit to the right armpit across the front in a straight line over the upper part and not through the centre in mm

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 20, 2026