As men tend to have more lean muscle mass in general (thanks to the hormone, testosterone, they have in their body), this helps elevate their resting metabolic rate. This is also why men tend to be able to eat more than women without worrying about weight gain. Therefore, someone who has a great degree of lean muscle mass will typically experience a higher overall BMR than someone who does not have as much lean muscle mass. Muscle is very metabolically active, meaning it burns a high amount of energy on a daily basis, simply sustaining itself. The most important factor that influences the BMR value is the total level of lean muscle mass tissue. Maintaining contraction of all smooth muscle tissues (which are the tissues of the heart and organs)īMR accounts for all non-motion-related activities and is the largest contributor of the total daily calorie burn, accounting for about 60-75% of total daily energy expenditure.Making sure any necessary tissues are being repaired and replaced.Keeping their liver running at full capacity.Ensuring the kidneys are working, filtering water and waste materials.Resting metabolic rate is usually measured in the morning before you eat or exercise and after a full night of restful sleep.īasal metabolic rate (BMR) is a measurement of the number of calories needed to perform your body’s most basic ( basal) functions, like breathing, circulation and cell production. Resting metabolic rate is a measurement of the number of calories that your body burns at rest. But there is a slight difference in the definition of BMR and the definition of RMR that is helpful to understand. Some experts use the terms basal metabolic rate (BMR) and resting metabolic rate (RMR) interchangeably. Basal Metabolic Rate vs Resting Metabolic Rate
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