How are metabolism and RMR (resting metabolic rate) related?
Metabolism is the rate at which our body burns calories. Our resting metabolic rate is, essentially, the number of calories our body burns just to keep itself alive- keep our heart beating, blood pumping, brain functioning, etc. I like to think of it this way: its the number of calories we would burn if we just sat in bed all day. If we raise our metabolism through proper diet and exercise, our RMR is raised as well. Building muscle mass is a particularly effective way to raise both. If we lower our metabolism through poor dietary habits (like starvation in the hopes of losing weight), our RMR is lowered as well.
Why do people need more calories than what is required to reach their RMR (Resting Metabolic Rate)?
Because were constantly doing things. On a lazy day, I still get up and go to school and walk up and down my three level high school with a 5-40 lb backpack, even if I just sit in bed when I get home. Sleeping a night burns like 800 calories. If you play sports, that burns more calories. Fidgeting a bunch can burn calories. We are constantly in motion, constantly burning calories, plus our RMR/BMR.
Is resting metabolic rate changeable?
i heard the resting metabolic rate RMR, calories you burn for basic metabolic functions, are dependent on genetics. height and muscle mass. i have had mine tested before, and a friend of mine who was 200 lbs had 1200 kcal/day and i had 1400/day. is it possible to change this number? if it is dependent on muscle mass, will resistant training increase it? also, is there a place in NY where i can get a reliable test for RMR?
What are the differences between resting metabolic rate and basal metabolic rate?
Both BMR (Basal Metabolic Rate) and RMR (Rest Metabolic Rate) seems to be same y definition but the basic difference between these two are the initial conditions of Subject (person of which BMR and RMR is measuring) and function includes in RMR additional to functions consider in BMR. Basal Metabolic Rate (BMR) is the amount of energy required by a person to keep his/her body in basic functioning at complete rest. These functions are respiration, blood circulation and cell growth. RMR in addition to above functions also includes digestion function.In BMR, subject should not eat or drink anything before 12 hours to test. But in RMR subject can eat i.e he/she need not to do fast.In BMR, suject should sleep 8 hours and upon waking only reading will be recorded. While sleeping condition is not applicable in case of RMR.BMR can measured in testing facility only, while RMR can be measured anywhere, of course rest to subject is necessary.BMR is always slightly higher than RMR.
People don't believe that I burned 1,624 calories?
Ok so I'm 18,female,5'5, and weigh 221pds. And yesterday I Was on the stair master for an hour and my watch said I burned 1624 calories and people don't believe me. (And I go hard in the gym) But are they right and the watch is wrong or vice versa?
What is BMR (basal metabolic rate) ?
BMR is the total number of calories consumed by your body per day to keep you alive. In other words, it is the smallest amount of energy required to sustain your life and does not include calories required to create bodily movement. Consider it to be approximately the number of calories you would burn if you slept 24 hours per day. It's important because it is used to determine your total caloric requirement. For example, you can go here http://www.caloriesperhour.com/index_bur... and find the number of calories required for doing exercises, for doing busy work, for relaxing, etc. and then add them all to your BMR (which you can also estimate using the afore mentioned website) to determine your total daily caloric requirement or your daily burn rate. Any calories consumed above and beyond that total number will contribute to store energy (fat) so that's how you know when you're not eating to maintain but to gain. If you consume about 500 cals/day below your total daily requirement, you'll burn fat at the rate of about a pound per week. Most people don't become involved is such detailed calculations to diet for fat loss. It's easier to just go here http://www.myfitnesspal.com/ and let the website do the calculations for you. Good luck and good health!! ♠
Do people with a low metabolic rate live longer than those with a high metabolic rate?
When you refer to Metabolic Rate I assume its the Basal Metabolic Rate that is in question.Well, according to the Free Radicals theory of ageing and death, it should hold true.Theoretically, the greater the metabolism of a species, the shorter it’s lifespan. This is what we have observed species to species. For example, it is commonly believed that primates have a longer lifespan by successfully reducing their metabolism to 50% of other species.Well, there is contradicting data about the same. We still don’t know what actually causes ageing and death. They are after all paradigms that need to be established into concrete theories.An experiment with Zebra finches was conducted where Finches in captivity were observed to determine the effect of Basal metabolic rate on ageing.Turns out, it was inconclusive. It was observed that Basal metabolic rate for female finches was inversely proportional to their life span but there was nothing derived about the males. But it was also mentioned that the observation in females might have been because of other reasons apart from the Basal Metabolic rate as well.So, we don’t yet know the truth and research is still underway to what the relation between ageing and Basal Metabolic Rate is.Source:Humans' slow metabolisms explain long life span, study saysBody size, energy metabolism and lifespan.Is the Rate of Metabolic Ageing and Survival Determined by Basal Metabolic Rate in the Zebra Finch?Do People With Slow Metabolisms Live Longer?
What is a caloric deficit and does it slow metabolism, if so then how does one lose weight on a caloric deficit?
A calorieIs a unit of energy, generally defined as the amount required to raise a gram of water 1 degree C. Nutritionally it’s generally used in lieu of “kilocalorie” to mean 1000 calories.Your body requires a certain amount of energy to function throughout the day. This is generally calculated from 3 separate values:Resting Metabolic Rate or Basal Metabolic Rate (RMR or BMR). This is how much energy you would burn if you did absolutely nothing other than the absolute bare minimum to survive lie around and breathe, basically. This includes all the power your brain uses, your heart pumping blood around, tissue repairs, cell creation, etc.Activity energy. This is the amount of energy you burn by activity. Unless you’re actually comatose, you will burn energy this way. This includes even simple activities like walking to use the bathroom.Thermic Effect of Food. This is the amount of energy you burn digesting food that you eat. Yes, it takes energy to create energy. That said, there is no food that burns more energy than it provides. Even celery has only a 10% waste.Generally, the TEF is ignored and people focus on the RMR and AE when it comes to calculating the amount of energy you need to consume during the day.A caloric deficit is when you eat less than what you burn.Simple, right? Yeah, it’s difficult to make that exact, but that’s really all it is.Does it slow your metabolism? Yes, slightly over time your body will adjust to the amount of calories you’re giving it. If you figure out that you require 2000 calories day to day and you eat 1500 to lose weight, by the time a year has gone by your body will have lowered the amount it needs to that 1500 level and you’ll need to eat less than that to continue losing weight. A year is a long time though.The bigger the deficit, the faster your RMR will drop. The farther your RMR drops the harder a time you’ll have getting it back up.Typically, people will go on a deficit for a while (like a week) and then have a “cheat day”. this can help keep your RMR up for a longer amount of time.Another strategy is to exercise while you’re eating on a deficit. Exercise will raise your RMR by increasing muscle density and tissue repair activities so that you don’t have to eat so little.Generally speaking, keep your goals long term, don’t try to crash diet, and eat a diversity of foods: lots of plants and plenty of protein. Oh, and exercise.
Do calories burned by an activity exclude or include resting metabolic rate?
Always include. This is a perennial mistake that most people make, they think it is separate from their metabolic rate.They see the read out on a machine or on a tracker as 400 kcal and think they have 400 kcal to play with in their diet all of a sudden. Unlikely, it’s probably more like 250-300 kcal. That’s ignoring the fact that most are terribly inaccurate to begin with.See my answer to “Do fitness trackers still have a use for measuring calorie consumption trends when the median error rate is between 27.4%-92.6%?”Some tracking tools try to deduct your resting metabolic rate from the total but they will often tell you when they do that specifically. All of this is just an estimate to begin with though, so don’t forget that.Otherwise most tracking companies or equipment don’t make incredibly obvious that it includes your resting energy output. Or the calories you would have burned doing absolutely nothing.All of this to say, it’s generally a bad idea to ever rely on calories burned. Unless you’re hooked up to a metabolic cart every time you exercise it won’t be that accurate and you’re likely to see a number and assume you’ve given yourself a buffer that doesn’t really exist. Don’t reward exercise adherence with food, it’s a slippery slope.Exercise because preserves lean mass and it’s good for you. Do not use it to juggle a complicated dynamic math equation.