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

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.

Study Overview

• Status: Completed
• Conditions: Body Composition; Anthropometry; Smartphone; Three Dimension
• Intervention / Treatment: Diagnostic test: Smartphone-Based 3D Body Scanning

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.

• Study Type: Observational
• Enrollment (Actual): 35

Contacts and Locations

Study Locations

• Belgium
  • Antwerp, Belgium
    • University of Antwerp

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: N/A

• Sampling Method: Probability Sample

Study Population

seventeen men and eighteen healthy women

Description

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

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Waist height	Length waist to floor (SIAS) in mm	10 and 16 February 2026
Waist to knee height	Vertical length from waist to middle of knee cap in mm	10 and 16 February 2026
Knee height	Length from the top of the knee to the bottom of the foot in mm	10 and 16 February 2026
Outer arm in	Arm length from bone at top edge of shoulder to elbow to wrist just below wrist bone in mm	10 and 16 February 2026
Foot length	Length from back of heel to tip of longest toe in mm	10 and 16 February
height	Height from top of head to floor in mm	10 and 16 February 2026
Neck girth	Circumference around neck over Adams apple following natural curve in mm	10 and 16 February 2026
Hip girth	Circumference at widest point of bum from side view in mm	10 and 16 February 2026
Belly girth	Circumference at belly button in mm	10 and 16 February 2026
Bust girth	Circumference around chest beneath armpits and in line with nipples in mm	10 and 16 February 2026
Under bust girth	Circumference just under bust in mm	10 and 16 February 2026
Back arm pit contour	Distance armpit to armpit straight across the back without going into the armpit in mm	10 and 16 February 2026
Forearm girth	Circumference at largest point on forearm in mm	10 and 16 February 2026
Wrist girth	Circumference just below wrist bone in mm	10 and 16 February 2026
Thigh girth	Circumference measurement taken 1cm below the gluteal line or fold in mm	10 and 16 February 2026
Knee girth	Circumference around knee cap at the widest point in mm	10 and 16 February 2026
Ankle girth	Circumference at the narrowest point of the ankle in mm	10 and 16 February 2026
Upper arm girth	Bicep circumference at upper arm mid-point in mm	10 and 16 February 2026

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Type of clothing	Loose or tight	10 and 16 February 2026
Skin Colour	light, medium or dark	10 and 16 February 2026
Movement	no movement or slight movement	10 and 16 February 2026
Belly height	Vertical distance from waist to abdomen in mm	10 and 16 February 2026
Bust height	Distance from base of neck down to the centre of the fullest part of bust in mm	10 and 16 February 2026
Armspan	Lenght 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	10 and 16 February 2026
Head girth	Circumference from slightly above eyebrows above the ears and over the occipital prominence and the back of the head (with a bathing cap) in mm	10 and 16 February 2026
Bust width	Length 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	10 and 16 February 2026

Collaborators and Investigators

• Sponsor: Femke Van Orden

Study record dates

Study Major Dates

• Study Start (Actual): November 11, 2025
• Primary Completion (Actual): February 10, 2026
• Study Completion (Actual): February 16, 2026

Study Registration Dates

• First Submitted: May 8, 2026
• First Submitted That Met QC Criteria: May 9, 2026
• First Posted (Actual): May 15, 2026

Study Record Updates

• Last Update Posted (Actual): May 19, 2026
• Last Update Submitted That Met QC Criteria: May 14, 2026
• Last Verified: May 1, 2026

More Information

Terms related to this study

• Other Study ID Numbers: ANTHRO-SMART-4D-2026

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