Hur räknas bmr
BMR Calculator
The Basal Metabolic Rate BMR Calculator estimates your basal metabolic rate—the amount of energy expended while at rest in a neutrally temperate environment, and in a post-absorptive state meaning that the digestive system is inactive, which requires about 12 hours of fasting. Exercise: minutes of elevated heart rate activity. Intense exercise: minutes of elevated heart rate activity.
The basal metabolic rate BMR is the amount of energy needed while resting in a temperate environment when the digestive system is inactive. It is the equivalent of figuring out how much gas an idle car consumes while parked.
Räkna ut BMR (Basal Metabolic Rate)
In such a state, energy will be used only to maintain vital organs, which include the heart, brain, kidneys, nervous system, intestines, liver, lungs, sex organs, muscles, and skin. The BMR is measured under very restrictive circumstances while awake. An accurate BMR measurement requires that a hur räknas bmr sympathetic nervous system is inactive, which means the person must be completely rested.
Basal metabolism is usually the largest component of a person's total caloric needs. The daily caloric need is the BMR value multiplied by a factor with a value between 1. In most situations, the "Hur räknas bmr" is estimated with equations summarized from statistical data. The Harris-Benedict Equation was one of the earliest equations introduced. It was revised in to be more accurate and was used up untilwhen the Mifflin-St Jeor Equation was introduced.
Of these equations, the Mifflin-St Jeor Equation is considered the most accurate equation for calculating BMR with the exception that the Katch-McArdle Formula can be more accurate for people who are leaner and know their body fat percentage. You can pick the equation to be used in the calculation by expanding the settings. However, anaerobic exercises, such as weight-lifting, indirectly lead to a higher BMR because they build muscle mass, increasing resting energy consumption.
The more muscle mass in the physical composition of an individual, the higher the BMR required to sustain their body at a certain level. Age — The more elderly and limber an individual, the lower their BMR, or the lower the minimum caloric intake required to sustain the functioning of their organs at a certain level. Weather — Cold environments raise BMR because of the energy required to create a homeostatic body temperature.
Likewise, too much external heat can raise BMR as the body expends energy to cool off internal organs. Diet — Small, routinely dispersed meals increase BMR. Pregnancy — Ensuring the livelihood of a separate fetus internally increases BMR. This is why pregnant women tend to eat more than usual. Also, menopause can increase or decrease BMR depending on hormonal changes.
Supplements — Certain supplements or drugs raise BMR, mostly to fuel weight loss. Caffeine is a common one. It is better to consult a certified specialist or measure BMR through a calorimetry device. These handheld devices are available in many health and fitness clubs, doctor offices, and weight-loss clinics. While the two are used interchangeably, there is a key difference in their definitions.
Resting metabolic rate, or RMR for short, is the rate at which the body burns energy in a relaxed, but not fully inactive state. It is also sometimes defined as resting energy expenditure, or REE. BMR measurements must meet total physiological equilibrium while RMR conditions of measurement can be altered and defined by contextual limitations. Essentially, an average person eating an average diet will likely have expected BMR values, but there are factors that are still not understood that determines BMR precisely.
Therefore, all BMR calculations, even using the most precise methods through specialists, will not be perfectly accurate in their measurements. Not all human bodily functions are well understood just yet, so calculating total daily energy expenditure Hur räknas bmr derived from BMR estimates are just that, estimates. When working towards any sort of health or fitness goal, BMR can aid in laying down the foundations, but from there on, it has little else to offer.
A calculated BMR and thus TDEE may result in unsatisfactory results because of their rough estimates, but maintaining a daily journal of exercise, food consumption, etc. Tracking progress in said journal and making adjustments over time as needed is generally the best indication of progress towards reaching personal goals. Am J Clin Nutr ; US units metric units other units.
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BMR-kalkylator - så många kalorier bränner du i vila
Calories Kilojoules. BMR estimation formula:. Mifflin St Jeor. Revised Harris-Benedict.