How do I measure body fat?

body fats can be easily defined as the percentage of fat containing the body. While a certain amount of body fat is necessary for normal body function, too much body fat leads to an increased risk of diseases such as diabetes 2. Type and heart problems. There are many different ways to measure body fat, from relatively high technologies to very simple.

body weight index (BMI) is a better body fat rate than a standard bathroom scale because it takes into account the weight ratio in height. BMI less than 18.5 is underweight, 18.5 to 24.9 is normal, 25 to 29.9 is overweight and more than 30 is obese. One of the potential BMI problems is that it tends to overestimate the body fats of people with large muscle mass, such as Olympic athletes, and tends to underestimate the body fats of people who have lost muscle, such as elderly. Despite these exceptions, however, BMI is considered to be accurate body fat assessment in most people.

circuit

Passport circuit is a method of measuringBody fat by determining human abdominal obesity. In this simple method, the tape rate is wrapped around the waist at the navel level and the perimeter is recorded. The perimeter greater than 40 inches in men or 35 inches in women is associated with a higher risk of developing obesity diseases.

body fat calipers are a popular method of measuring the percentage of body fat and are available in most gyms or health clubs. These calipers measure the amount of subcutaneous fat or fat under the skin in various places throughout the body, including the back of the arms and abdomen. In principle, the skin is clamped and the jaws measure the thickness of the fat layer. These values ​​are then inserted into the equation to determine the total percentage of body fat.

Body fat scale uses a bioelectric impedance (BIA) method for body fat measurement. A small and safe amount of electric current passes through the body and measures the amount of resistance to PRouda. Since the signal quickly passes through the muscle, but slower fatty tissue, the level of resistance reflects the percentage of body fat.

hydrostatic weighing or weighing underwater is based on the concept that fat is lighter than water, so someone with higher body fat will weigh less underwater than someone with lower body fat. This process includes sitting on a scale inside the water tank and blowing all air from the lung for measurement underwater. The percentage of body fat is calculated by comparing the weight underwater with a weight out of water.

The most accurate way of measuring body fat is to scan dual energy X -ray absorption (Dexa). It is a low radiation X -ray that is often used for screening for osteoporosis. Dexa scanning can provide a precise evaluation of the body composition by comparing the measurement of adipose matter, lean mass and bone mass.