What are the scientific methods for measuring body fat?

When exercising and losing weight, experts often mention the term body fat percentage. The so-called body fat percentage is the proportion of fat in the human body. This is a percentage. Obviously, if the body fat percentage is higher, the fatter the person will be. If the body fat percentage is lower, the less fat on the body. For example, before going to the gym, the fitness organization will help measure body fat. In this way, you can understand a person's body fatness or thinness. So how do you measure body fat correctly?

First, the comparison of the seating method

The simplest way is to look at the corresponding muscle pictures to see which body type you are most compatible with, and then you can roughly know your body shape range.

Second, the finger pinch measurement method

Relax your abdomen, place your hand next to your belly button, with your thumb and index finger about 3 cm apart, and pinch all the fat under this 3 cm. Observe how much you can pinch. Usually 1-1.5CM is acceptable. For children's shoes over 1.5CM: boys' body fat is over 20%, and girls' body fat is over 25%.

Third, Encyclopedia Calculation Formula Method

Body fat percentage = 1.2 × BMI + 0.23 × age - 5.4 - 10.8 × gender (male is 1, female is 0)

BMI = weight ÷ (height × height)

Fourth, waist circumference weight calculation method

The best time to measure is in the morning, preferably right after waking up from a sufficient sleep (7-8 hours). At this time, the measurement data of weight and waist circumference are most accurate.

Body fat formula for women:

Parameter a = waist circumference × 0.74

Parameter b = weight × 0.082 + 34.89

Total body fat weight = ab

Body fat percentage = (total body fat weight ÷ body weight) × 100%

Body fat formula for men:

Parameter a = waist circumference × 0.74

Parameter b = weight × 0.082 + 44.74

Total body fat weight = ab

Body fat percentage = (total body fat weight ÷ body weight) × 100%

Fifth, answer measurement method

Put a ∨ next to the item that applies to you.

1. The current weight is more than 5 kg more than when you were 18 years old;

2. Eating is like autumn wind sweeping fallen leaves, sweeping away the plate in a whirl;

3. The weight has not changed, but the muscles are getting looser and looser;

4. The mouth is always full, and snacks can be found in ladies’ bags;

5. Fried food is a good friend and cannot be separated from it;

6. The ratio of waist circumference divided by hip circumference is greater than 0.76;

7. You are nicknamed "elevator lady" and you have to take the elevator even to the second floor;

8. Always losing weight, but always gaining it back.

2 or less; body fat percentage is below 25%. If the body fat percentage does not exceed 25%, you can rest assured that you are still a slim woman. But you must not take it lightly. Maintaining a good diet, living habits and mastering the correct exercise methods are the best ways to maintain your beautiful figure.

3-5: The body fat percentage is between 25-30%. Although you don’t look fat, you are actually very strong. Although being overweight does not completely mean being obese, you are gradually getting closer to the fat group. Change your eating habits and lifestyle quickly and start exercising.

If you have more than 6 of these, and your body fat percentage is over 30%, you have accumulated a lot of excess fat in your body. If you don't take action to improve it, you will get fatter and fatter. A body fat percentage over 30% is considered obesity. Not only will you look bloated, but you will also be prone to various diseases. Hurry up and start the battle to lose weight and become a low-fat beauty again.

Friends who have read this article can try it themselves and estimate their own body fat percentage. The ideal body fat percentage is 14-20% for men under 30 years old and 17-23% for those over 30 years old; for women under 30 years old, it is 17-24% and 20-27% for those over 30 years old.

The body fat percentage should be kept within the normal range. If the body fat of men exceeds 25% and that of women exceeds 30%, they can be judged as obese. Obesity indicates lack of exercise, overnutrition or some endocrine system disease, and is often complicated by hypertension, hyperlipidemia, arteriosclerosis, coronary heart disease, diabetes, cholecystitis and other diseases; if the body fat percentage is too low, below the safe lower limit of body fat content, that is, 5% for men and 13%~15% for women, it may cause functional disorders.