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Bioimpedance body composition analysis
bioimpedance analysis · body composition test · BIA · body fat and muscle test
A very weak current that you will not feel is passed through your body. The device works out how much fat, muscle, and water your body has.
To plan nutrition and weight loss, to track weight, and for some health conditions, when a doctor orders it.
⏱ Duration: usually 5 to 10 minutes; the result is given right away
Be sure to tell your doctor
How to prepare
- Food and water. Usually do not eat or drink a lot for 2 to 4 hours before the test. Check with the clinic.
- The day before. No alcohol or hard workouts.
- Toilet. Use the toilet before the measurement.
- Jewelry. Take off metal jewelry and your watch.
What to bring
- Your referral, if you have one
- Comfortable clothes
How it goes
- You are weighed and your height is measured
- You lie on an exam table or stand on an analyzer scale
- Electrodes are stuck on your hand and foot, or you hold handles
- You lie or stand still for a few minutes
- The device gives the result
What you'll feel
- You feel nothing. The current is very weak
- The electrodes may feel cool on your skin
Afterwards
- You get a printout right away
- For repeat measurements, it is better to come at the same time of day and in the same conditions
- Go over the result with your doctor
Common questions
Is it accurate?
It is a good estimate, but food, water, and the time of day affect the result. Compare measurements taken in the same conditions.
Can I do it with a pacemaker?
Usually not. Be sure to say so ahead of time.