User Guide

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How exactly is my body fat and water being measured?
The formfit uses a measurement method known as Bio-electrical Impedance Analysis
(BIA). A minute current is sent through your body, via your feet and legs. This current
flows easily through the lean muscular tissue, which has a high fluid content, but
not easily through fat. By measuring your body’s impedance (its resistance to the
current), the quantity of muscle can be determined, and the quantity of fat and
water can then be estimated.
What is the value of the current passing through me when the
measurement is taken? Is it safe?
The current is less than 1mA. You may not be able to feel it, but please note that this
device should not be used by anyone with an internal electronic medical device,
such as a pacemaker, as a precaution against disruption to that device.
If I measure my body fat and water at different times during a day, it
can vary quite considerably. Which value is correct?
Your body fat percentage reading varies with body water content, and the latter
changes throughout the course of the day. There is no right or wrong time of the
day to take a reading, but aiming to take measurements at a regular time when
you consider your body to be normally hydrated can help. It is not recommended
to take readings after having a bath or sauna, following intensive exercise, or
within 1-2 hours of drinking in quantity or eating a meal.
Is it possible to get a different reading when using a body analyzer from
another manufacturer?
Different body analyzers take measurements around different parts of the body and
use different mathematic algorithms to calculate the percentage of body fat. The
best advice is not to make comparisons from one device to another, but to use the
same device each time to monitor any change.
What should I do if my body fat reading is very ‘high’?
A sensible diet, fluid intake, and exercise program can reduce your body fat
percentage. Professional medical guidance should be sought before embarking
on such a program.
Why are the body fat percentage ranges for men and women so different?
Women naturally carry a higher percentage of fat than men, because the make-up
of the body is different.
How do I use my formfit while pregnant?
During pregnancy, a woman’s body composition changes considerably in order
to support the developing child. Under the circumstances, body fat percentage
readings could be inaccurate and misleading.
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