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

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.