Omron HBF-306C Instruction Manual - Page 5

INFORMATION ON BODY COMPOSITION The Fat Loss Monitor displays the estimated value of body fat percentage by the Bioelectrical Impedance (BI) method and indicates the Body Mass Index (BMI) range with the BMI classification bar. Bioelectrical Impedance Method Muscles, blood vessels and bones have a high water content that conduct electricity easily. Body fat does not hold water, therefore it has low electrical conductivity. The Fat Loss Monitor sends an extremely low-level electrical current of 50 kHz and 500 µA through your body to determine the amount of fat tissue. This weak current is safe and not felt while operating the Fat Loss Monitor. Body Weight Body Fat Fat-free mass • Bones • Blood • Muscles • Water Body Fat Percentage Body fat percentage refers to the amount of body fat mass as part of the total body weight. Body fat % = (Body Fat Mass in Pounds / Body Weight in Pounds) x 100 Estimated Body Fat Percentage Hydrodensitometry, or underwater weighing, has been an established method for accurate evaluation of body composition. Omron has used research information from several hundred people using the underwater method to develop the formula by which the Fat Loss Monitor works.The body fat mass and body fat percent is calculated by a formula that includes five factors: electric resistance, height, weight, age, and gender. Body Fat Ranges for Adults Gender Age Low Normal High Very High Female 20-39 40-59 < 21.0 < 23.0 21.0-32.9 23.0-33.9 33.0-38.9 34.0-39.9 60-79 < 24.0 24.0-35.9 36.0-41.9 20-39 < 8.0 8.0-19.9 20.0-24.9 Male 40-59 < 11.0 11.0-21.9 22.0-27.9 60-79 < 13.0 13.0-24.9 25.0-29.9 * Based on gallagher et al., American Journal of Clinical Nutrition, Vol.72, Sept. 2000 ≥ 39.0 ≥ 40.0 ≥ 42.0 ≥ 25.0 ≥ 28.0 ≥ 30.0 5