Basal metabolism

Basalmetabolism (BM) refers to the minimum energy requirement required by all organs in the body to sustain life. The measurement method is the energy metabolism rate when the human body is in a state of being awake and extremely quiet, and is not affected by muscle activity, environmental temperature, food and mental stress. Basic Information Specialist classification: growth and development check classification: physical examination Applicable gender: whether men and women apply fasting: fasting Tips: 12 to 14 hours before the fasting, and the last meal should be light, but not full, to rule out the effects of food special dynamics. The basal body temperature is measured first to eliminate the influence of body temperature (the basal metabolic rate increases by about 13% for every 1 °C increase in body temperature. Normal value Males aged 18 to 29, 1,550 kcal / day 1,210 kcal / day. 30 to 49 years old male 1,500kcal / Japanese female 1,170kcal / day. 50 to 69 years old male 1,350kcal / day female 1,110kcal / day. Males over 70 years old, 1,220kcal/day female 1,010kcal/day. Clinical significance Abnormal result Increased in hyperthyroidism, pheochromocytoma, pituitary tumors, Cushing's disease, fever, pregnancy and so on. Reduced in hypothyroidism, malnutrition, severe edema, chronic adrenal insufficiency, hypopituitarism and so on. People who need to be checked A swollen, hyperthyroidism, severe edema, fever. Low results may be diseases: high incidence of hypothyroidism in the elderly may be diseases: pediatric premature aging, hyperthyroidism in children, simple goiter in children, obesity in children, congenital megacolon, hyperthyroidism in the elderly, Toxic diffuse goiter, cutaneous lymphogranulomatosis, simple obesity, congenital tumors Before the test: 12 to 14 hours before the fasting, and the last meal should be light, but not full, to rule out the effects of special kinetic effects of food. The basal body temperature is measured first to rule out the effect of body temperature (the basal metabolic rate increases by about 13% for every 1 °C increase in body temperature). When checking: (1) Stay awake and calm to rule out the effects of high nervous activity. (2) lie flat and relax for more than half an hour to measure to eliminate the effects of muscle activity. (3) The room temperature is maintained at 18 to 25 ° C (preferably 20 ° C) to eliminate the influence of external temperature. Inspection process There are two main ways to measure the basal metabolic rate: The first is to use the formula calculation method. As long as the height, weight, sex and age are entered into the formula, the basal metabolic rate can be obtained. The advantage of using the formula is simple and convenient, but the disadvantage is that there are at least five kinds of formulas, each of which is calculated. The results are not the same, and most of these formulas are designed for Westerners, the Orientals are less applicable, and the formula is too old. In addition, when the height, weight, sex and age are the same, two people are calculated by the formula. In theory, the basal metabolic rate should be the same, but each person is different from each other and cannot be the same. The second method is direct or indirect calorimetry, which uses the oxygen inhaled by the subject and exhaled carbon dioxide to estimate the basal metabolic rate through gas analysis and special conversion. The advantage is that each individual can be calculated more realistically. The basal metabolic rate value, but the disadvantage is that the machine is quite large and time-consuming to operate, it takes a lot of time to check; currently in the United States has developed a relatively simple operation of the basal metabolic rate measuring instrument, the country is in the process of reliability and validity Research, I believe that in the future can provide a simple and correct basal metabolic rate test for physicians and patients. Not suitable for the crowd Generally there are no people who are not suitable. Adverse reactions and risks Generally no adverse reactions.