Resting metabolic rate that is measured accounts for approximately 60-70 percent of your total metabolic rate (total daily calories burned). Most of your resting metabolic rate is beyond your control and is dictated by age, height, sex, weight, genetics, organ function and hormones. The only aspect of your resting metabolic rate that you really have control over, unless you have a hormonal or medication problem, is your muscle mass. The remainder of your total metabolic rate is composed of exercise, which accounts for about 20-25 percent depending on how active you are, and eating (also called the thermic effect of feeding), which accounts for about 10 percent of your total daily calories burned.
When you test your resting metabolic rate, you must then multiply that number by an activity factor that usually ranges from 1.3 to 1.9, depending on how physically active you are every day in your job and also during exercise. Resting metabolic rate can also be estimated using a mathematical equation and can be calculated by some of the more sophisticated body fat scales that measure age, height, sex, weight, fat mass and lean body mass to come up with a fairly accurate estimate.
If you think you would find it helpful to know more precisely how many calories you should be consuming daily, you might want to consider testing your resting metabolic rate or getting a body composition analysis. Once you know this number, it is critical to pay close attention to the number of calories you consume to lose weight, since most people who are overweight underestimate caloric intake by up to 30 percent.
If you would like to know more or are interesting in finding out what your Resting Metabolic Rate is, schedule an appointment at the Hit Center to have yourself tested!!
