Evaluation of the Accuracy of a Computer Vision-based Tool for Assessment of Total Body Fat Percentage

Overview

This research study is designed to validate the precision and accuracy of body measurement and composition results from a novel 2D imaging device that operates through a smart-phone application. Measurement references will be obtained through dual energy x-ray absorptiometry, air displacement plethysmography, bioelectrical impedance analysis, manual anthropometry, and previously validated 3D optical scanners.

Participation in this study will require a single 3-hour visit to complete. Each person will be asked to arrive at PBRC wearing easily removable gym-style clothing. Upon checking in, they will first complete the informed consent process, then have their vital signs checked, and then women of child-bearing potential will also have a urine sample taken. Outpatient clinic procedures will be followed by a series of body size and composition assessments that will require an outfit of minimal clothing. Clean spandex shorts, sports bras, and lycra caps will be provided. * Anthropometric measurements including hip, waist, arms, and thighs circumferences will be collected by a trained observer using a calibrated tape measure. * Body shape will be measured digitally using 2D and 3D optical devices that optimize light patterns to calculate depth. * Bioelectrical Impedance Analysis measures the amount of fat and lean mass in the body using electrodes positioned close to the feet and hands. * Whole body dual-energy X-ray absorptiometry measures the amount of bone, muscle, and fat mass in the body using low energy X-rays. * Air displacement plethysmography estimates whole body volume, fat mass, and fat-free mass of the body using variations in air pressure

Conditions

Interventions

Eligibility

Locations (2)

Outcomes