Obesity Clinical Trial
Official title:
Evaluation of the Accuracy of a Computer Vision-based Tool for Assessment of Total Body Fat Percentage
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 DXA, BodPod, BIA, 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. - BodPod estimates whole body volume, fat mass, and fat-free mass of the body using variations in air pressure ;
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