Bioelectric Impedance Analysis (BIA)

Bioelectric Impedance Analysis (BIA)

Bioelectric Impedance Analysis (BIA) is a simple, noninvasive, rapid, portable, reproducible, and convenient method of measuring body composition.

  1. 1
    How does BIA work?

    By using the impedance measurements, along with a person’s height, weight, and body type (gender, age, fitness level), it is possible to calculate the percentage of body fat, fat-free mass, hydration level, and other body composition values. BIA measures the impedance or resistance to the signal as it travels through the water that is found in muscle and fat. The more muscle a person has, the more water their body can hold. The greater the amount of water in a person’s body, the easier it is for the current to pass through it.

  2. 2
    What does BIA testing involve?

    BIA requires the patient to lay on their back. Please let your Technician know if you have problems lying down. Two electrodes with leads will be placed on your right hand and two on your right foot. The Tech will ask you to open your arms and legs as if you were a Scarecrow. Once you are in position, start the BIA machine and ask you not to move or speak while the test is in progress. The test is completed in about 30 seconds, and you can then move freely or sit up if needed.

  3. 3
    How can BIA help me?

    In our office, we look at how your body is holding on to water. Are your cells hydrated? Are you holding excess water? Is the water in your body evenly distributed? This can help us determine how well treatments are going to work with your body or if you are inflamed.

  4. 4
    When should I get BIA?

    You will receive a BIA with your initial visit to Gordon Medical and your doctor will discuss those results with you.

    It is advised that if you are scheduling a BIA outside of your initial consult that you schedule a 30 minute follow up appointment with your practitioner to discuss the result. A prescription is not required to have BIA done.

  5. 5
    How do I schedule an appointment in the office?

    Appointments can be made Monday through Friday with a Technician.

    Use one of the following options to make an appointment:
    Patient Portal for current patients
    New Patient Contact
    (707) 575-5180

  6. 6
    How much time does BIA take?

    BIA testing only takes a matter of minutes once we have the electrodes and leads in place. Generally we schedule BIA appointments for 15-30 minutes to include set up and clean up time.

  7. 7
    How can I prepare for my appointment?

    To Prepare for your BIA test we recommend that you have no alcohol 24 hours prior, you do not exercise for 4 hours prior, you avoid caffeine or food for 4 hours before, and you consume 2-4 glasses of water within 2 hours of your appointment. Also we ask that you do not wear any lotions or oils on your hands or feet, as this may prevent the electrodes sticking.

  8. 8
    Is it safe?

    BIA is safe and it does not hurt. In fact, the signal used in body fat monitors cannot be felt at all either by an adult or child.