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Body Composition – the TR2250 comes with 3 different body composition measures. These are
Body Fat Percentage, Body Mass Index, and Basal Metabolic Rate. None of these measures are
perfect and all of them should be used only as a relative gauge. These three measures are briefly
described below:
• Body Fat Percentage is calculated using a technique called Bioelectrical Impedance
Analysis (BIA). This is a simple and easy way to determine body fat by sending a signal
from one hand to another while the users hands are placed on the heart rate sensors.
The faster the signal travels the higher the muscle density. The results are based on the
fact that muscle tissue conducts electricity faster than fat because muscle is about 70%
water and fat contains almost no water.
• Body Mass Index (BMI) is a scientific measure that uses a ratio of height and weight. It
is a general measure of health risk, but does not take into account lean body mass. As a
result, a healthy muscular individual with very low body fat can be classified as over
weight. The following are general ranges of BMI measurements:
• Basal Metabolic Rate is the number of calories used by the body when it’s at rest. It is
calculated using age, sex, height, and weight. The BMR number shown on the display is a
three digit number. You will need to add a “0” to the end of the number to get your actual BMR.
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Female Range Male Range
Age Excellent Good Poor Excellent Good Poor
19-24 18.9 % 25.0% 29.6% 10.8% 19.0% 23.3%
25-29 18.9% 25.4% 29.8% 12.8% 20.3% 24.4%
30-34 19.7% 26.4% 30.5% 14.5% 21.5% 25.2%
35-39 21.0% 27.7% 31.5% 16.1% 22.6% 26.1%
40-44 22.6% 29.3% 32.8% 17.5% 23.6% 26.9%
45-49 24.3% 30.9% 34.1% 18.6% 24.5% 27.6%
50-54 26.6% 33.1% 36.2% 19.8% 25.6% 28.7%
55-59 27.4% 34.0% 37.3% 20.2% 26.2% 29.3%
60+ 27.6% 34.4% 38.0% 20.3% 26.7% 29.8%
Below 20 Lean – if you are not an athlete you should consider gaining
weight through good diet and exercise
Between 20 and 22 Ideal – indicates a healthy amount of body fat and the lowest
incidence of serious illness
Between 35 and 30 Slightly Overweight – increased risk for a variety of illnesses.
You should find ways to reduce your weight through diet
and exercise.
Over 30 Overweight – indicates an unhealthy condition with a higher
risk of heart disease, diabetes, high blood pressure, gall bladder
disease and some cancers. You should focus on losing weight
by changing your diet and increasing levels of exercise.