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Calculation formula of basic metabolic rate, normal range of basic metabolic rate

when you lose weight, you often hear that improving basic metabolism can enhance the effect of weight loss, that is, people with high basic metabolic rate lose weight faster. What is the basic metabolic rate? What is the calculation formula?

what is the basal metabolic rate

basal metabolic rate (BMR) refers to the energy metabolic rate of the human body in a sober and extremely quiet state without being affected by muscle activity, ambient temperature, food and mental tension.

Calculation formula of basic metabolic rate, normal range of basic metabolic rate

calculation formula of basal metabolic rate

to calculate the basal metabolic rate, the American Sports Medicine Association provides the following formula:

BMR (male) = (13.7 × Body weight (kg)) + (5.0 × Height (CM) - (6.8 × Age) + 66

BMR (female) = (9.6 × Body weight (kg)) + (1.8 × Height (CM) - (4.7 × Age) + 655

in addition, all large and medium-sized fitness clubs have body testing equipment. You just need to hold the handle of the instrument according to the coach's tips. After a minute or two, you can know your basic metabolic rate and specific data of body composition.

other calculation formulas of basal metabolic rate:

1. Basal metabolic rate% = (pulse rate + pulse pressure) - 111 (gale)

2. Basal metabolic rate% = 0.75 × (pulse rate + pulse pressure difference) × 0.74)-72(Read)

3. Basal metabolic rate% = 1.28 × (pulse rate + pulse pressure difference) - 116 (Kosa)

4. Basal metabolic rate: (unit: kcal, m refers to body weight)

man

18 ~ 30 years old: 15.3m + 679

30 ~ 60 years old: 11.6m + 879

over 60 years old: 13.5m + 487

woman

18 ~ 30 years old: 14.7m + 496

30 ~ 60 years old: 8.7m + 829

over 60 years old: 10.5m + 596

Calculation formula of basic metabolic rate, normal range of basic metabolic rate

normal range of basal metabolic rate

- 10 ~ + 15% is normal.

basal metabolic rate has physiological changes with gender and age. The basal metabolic rate of men is higher than that of women, and that of young children is higher than that of adults; The older the age, the lower the metabolic rate. Generally speaking, the difference between the actual value of basic metabolic rate and the normal average value is within 10-15%. When it exceeds 20% of the normal value, it can be regarded as pathological state, which is considered as abnormal basic metabolism. In general, the reference values of basic metabolism are as follows:

18 ~ 29 years old, male 1550kcal / day, female 1210kcal / day;

male aged 30 ~ 49, 1500kcal / day, female 1170kcal / day;

aged 50 ~ 69, male 1350kcal / day, female 1110kcal / day;

male over 70 years old 1220kcal / day, female 1010kcal / day.

Calculation formula of basic metabolic rate, normal range of basic metabolic rate

what factors affect basal metabolic rate

body surface area

with different body sizes, the total amount of basic metabolism of the human body is obviously different, and the basic metabolism is proportional to the body surface area of the human body.

the basal metabolic rate of women was slightly lower than that of men. In infancy, because the body tissue grows vigorously, the basal metabolic rate is the highest, and then gradually decreases with age,

ambient temperature and climate

environmental temperature has a significant effect on basic metabolism, and metabolism is the lowest in comfortable environment (20 ~ 25 ℃); Metabolism increases in both low and high temperature environments. Low ambient temperature may cause varying degrees of trembling and affect the increase of metabolism; When the ambient temperature is high, sweating is required due to heat dissipation, and breathing and heartbeat speed up. Therefore, it affects the increase of metabolism.

thyroid function

thyroxine can enhance the rate of all biochemical reactions in all cells. Therefore, the increase of thyroxine can cause the increase of basal metabolic rate. The determination of basal metabolic rate is one of the important diagnostic indications of hyperthyroidism. The basal metabolic rate can be increased by 40 ~ 80% in patients with hyperthyroidism and 40 ~ 50% in patients with hypothyroidism.

other factors

there are also some factors affecting the basic metabolic rate of human body, such as drugs and sympathetic nerve activity.

Calculation formula of basic metabolic rate, normal range of basic metabolic rate

what are the conditions for measuring basal metabolic rate

measuring basal metabolic rate requires the following conditions: early morning, awake and lying still; No muscle activity; Good sleep the night before; No mental tension during measurement; Dinner should not be too full the day before the test; Fasting for at least 12 hours before determination; Keep the room temperature at 20 ~ 25 ℃.

Calculation formula of basic metabolic rate, normal range of basic metabolic rate

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