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Measuring changes in body fat percentage, rather than just measuring changes in weight, can be very motivational when you're dieting zone bars - especially if you are exercising as part of your weight loss regime. How body fat is measured Bioelectrical Impedance Until zone bars fairly recently, measuring body fat percentage required the help of professionals. Bioelectrical Impedance technology means that body fat monitors are now easy to operate and available for home use. A very low level electrical signal is sent through the body - normally by standing on sensors on a body fat monitor. zone bars The signal travels quickly through lean tissue, which has a high percentage of water and is therefore a good conductor of electricity, and more slowly through fat, as fat has a lower percentage of water and is therefore a poor conductor of electricity. Bioelectrical Impedance devices use the information from this signal to work out body fat percentage.
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