NCT04854421

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

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 138 (actual)
• Sponsor: Pennington Biomedical Research Center · Academic / Other
• Sex: All
• Age: 21 Years – 80 Years
• Healthy volunteers: Accepted

Summary

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.

Detailed description

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

• Obesity

Interventions

Type	Name	Description
DEVICE	VBC	Body Composition will be measured using the VBC system that takes under 60 seconds per scan. Image capture for VBC will include taking a series of four photos using a smartphone camera. Data from the camera will be downloaded to a local computer and then securely sent to the cloud for automated analysis and results generation. We will conduct two consecutive scans (image captures) for each research participant.

Timeline

• Start date: 2020-08-12
• Primary completion: 2020-12-21
• Completion: 2020-12-21
• First posted: 2021-04-22
• Last updated: 2024-08-22
• Results posted: 2024-08-22

Locations

2 sites across 1 country: United States