Body mass index (BMI) = weight (kg) ÷ height 2 (m)
For example: 70kg (1.75x1.75) = 22.86.
Adult male body mass index is between 20 and 25, and female body mass index is between 19-24, which is considered as the normal range. Beyond this range, you need to lose weight, and below this range, you need to gain weight.
Body fat percentage is also important. Adult males are between 13- 18 and adult females are between 18-23.
Visceral fat grade is generally less than 9, and it is healthier below 4.5.
Muscle mass is related to height and bones, which is specific to everyone. People with large muscle mass have high basal metabolism and are easy to form lean physique. Even people who are thin have high muscle mass and are relatively healthy. People with large muscles are in better shape than people with the same height and weight.
The above indicators can be measured by a body fat scale.
What is a person's weight? This is related to the differences in people's health, gender and activities. It is only an indicator to measure whether there is energy balance in a period of time. Now "thinness" is beauty, and weight has become a concern of many people, especially women. How to judge whether our weight is normal? The standard weight can be calculated according to the following method.
Body mass index (BMI) is a calculation method of dividing the weight and kilograms by the square of the height and meters, which is widely used to calculate people's obesity and health status internationally.
Who calculation method male: (height cm-80) × 70% get the standard weight of male;
Female: (height cm-70) × 60% is equal to the standard weight of female;
The standard value of plus or minus 10% to 20% is overweight or underweight; More than plus or minus 20% is obesity and underperformance; Up and down within 10% are normal.
Overweight% calculation: (actual weight-standard)/standard, and then multiply by 100%.
For example, male, height 180cm, standard weight calculation is: (180-80) × 70% = 70kg. People who exceed the standard value 10% have deviations; More than 20% people are obese; Less than 10% people are thin; Less than 20% is emaciation.
Calculate the standard weight according to age: age multiplied by 2 plus 8 (seven to sixteen years old)
Those who exceed the standard weight by 20% to 30% are mildly obese; More than 30% to 50% are moderately obese; More than 50% are moderately obese.