HOW BODY FAT SCALES WORK:
-These scales work using technology known as Bioelectrical Impedance Analysis (BIA). Basically a harmless electrical current runs from your foot up your leg, across your pelvis, and back down the other leg. Muscle contains more water than fat so it is more conductive. The longer it takes the current to run back to the sensor the denser your body is. Once body density is determined, the scale puts this information into a formula and percent body fat is calculated.
ARE THEY ACCURATE?
-The short answer is no, but if you use the scale as a tool to monitor trends, it can at least give you an idea as to whether you are moving in the right direction or not. In order to make these devices as accurate as they can be, use them consistently. Always weigh at the same time of day, don’t exercise before you use the scale, make sure the room temperature is consistent, be equally hydrated each time you weigh, and remember, you get what you pay for so the more expensive scales are going to be more reliable than the cheaper ones. With that being said, it should be noted that these products are no longer being tested by Consumer Reports due to their inaccuracies.
Other FACTORS THAT EFFECT YOUR NUMBERS:
-Calloused, wet, sweaty or dirty feet
-Wet foot sensors
-Age (elderly and children are less accurate)
-Being an athlete
The bottom line: For the price, these scales are probably not worth it. Instead, hire a personal trainer who specializes in using skin fold calipers to measure body fat for a more accurate picture of your health.
Personally Trained By Sophie