Overview:
A body composition analyzer scale is a device that measures weight and analyzes the different components that make up your body. These scales typically use a method called bioelectrical impedance analysis (BIA), which sends a very low, harmless electrical current through the body via metal sensors.
At UTMB Health, we use the InBody 580 scale which measures muscle mass, body fat, visceral fat, and segmental body water percentages. Because muscle, fat, bone, and water conduct electricity differently, the scale uses this information to provide an estimate of your body composition.
Preparing for the Scan:
For the most accurate results, we recommend the following:
- Maintain normal fluid intake the day before the test, and hydrate one hour before the test.
- Empty your bladder before the test.
- Stand upright for five to 10 minutes before the test.
- Allow at least 20 minutes for your body to stabilize after exposure to a hot or cold environment.
- Don’t exercise before the test.
- Wait at least three hours after your least meal before the test.
- Don’t wear heavy clothing, accessories, or jewelry during the test.
- Refrain from drinking alcohol or excessive caffeine at least 24 hours before testing.
- Wipe your hands and bare feet with an alcohol wipe to remove any lotion or ointment.
During the Scan:
A bariatric surgery coordinator will be present to walk you through the following steps:
- Stand barefoot, with heels positioned on the rear foot electrodes and toes aligned properly. Don’t move during the scan.
- Grip the hand electrodes (handles) firmly, placing your thumbs on the oval sensors, and hold your arms straight out at about a 45-degree angle from your torso.
- Keep your arms and legs straight and slightly apart, avoiding contact with your torso or between limbs, to ensure accurate segmental measurements.
- You’ll be expected to remain on the scale, without moving, for at least 30 seconds.
- A safe, painless electrical signal will pass throughout your body as you stand on the scale and grip the handles.
After the Scan:
The full scan takes about 30 seconds to produce your results. The scale will generate a report, which the bariatric surgery provider will review with you. We recommend that you have a scan every two to four weeks to monitor your progress.