There are many formulas for calculating basal metabolic rate, which correspond to different methods. Here are only three of them, and the most commonly used one is the first method. It is more reliable to take the average of the results of the following formula when calculating:
(1) basal metabolic rate% = (pulse rate+pulse pressure difference)-11(Gale method)
(2) basal metabolic rate %=0.75× (pulse rate+pulse pressure difference ×0.74)-72(Reed method)
(3) basal metabolic rate %= 1.28× (pulse rate+pulse pressure difference)-1 16(Kosa method)
Extended data:
Basal Metabolic Rate (BMR) refers to the energy metabolic rate when the human body is awake and extremely quiet, and is not affected by muscle activity, environmental temperature, food and mental stress. That is, when basic physiological activities (i.e. blood circulation, breathing and constant body temperature), the minimum heat consumption per unit surface area per hour minus the standard heat consumption, and the percentage between the difference and the standard heat consumption is called basal metabolic rate.
To measure basal metabolic rate, lie still for half an hour (but stay awake) before breakfast in the morning, keep the room temperature around 20℃, and measure it by indirect calorimetry. The unit of basal metabolic rate is kj/(m2 h) (kj/m2/hour), that is, the number of kilojoules of heat emitted per square meter of body surface per hour.
brief introduction
Basal metabolic rate, simply put, the basal metabolism per unit time is called basal metabolic rate, which refers to the energy metabolism of the human body in the basic state, while the basic state refers to the state when people are awake and very quiet, and are not affected by factors such as muscle activity, environmental temperature, food and mental stress.
It is normal if it does not exceed or fall below 15% of the normal value. The determination of basal metabolic rate is the main auxiliary method for clinical diagnosis of thyroid diseases. When hyperthyroidism occurs, the basal metabolic rate can be significantly increased, while when hypothyroidism occurs, the basal metabolic rate can be significantly decreased.
In clinical and physiological experiments, it is stipulated that the subjects have not eaten food for at least 12 hours, and the metabolic rate is measured at room temperature of 20℃, resting for half an hour, staying awake and not doing mental and physical activities.