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How does Human Metabolism Work? - Resting Metabolic Rate (RMR)
-This is the amount of calories needed to run all essential functions and chemical reactions while in a rested and quiet state. RMR is
the largest part of total metabolism and accounts for 65 - 75% of calories burned in a day.
-If lean weight is lost from the body through increased protein metabolism the RMR decreases. This often
happens when people go on a strict diet, the body is forced into what's known as a "negative nitrogen balance" which means more protein is lost than what is replaced due to less protein/energy intake
. This imbalance causes a gradual loss in lean weight thus lowering the RMR.
-Many dieters limit the amount of lean weight loss with some type of intense exercise in order for muscles to develop a
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An increase metabolism provides many benefits to help maintain continuous and permanent weight loss:
-less exercise would be needed - giving you more time
-less effort if you did exercise - no n
eed to try burning lots of calories during each session!
-less chance of weight regain later
-still enjoy some favorite foods - no need to be as strict on the diet
-less time spent preparing
low / non fat recipes and meals
-save money from not needing to buy all the expensive low fat varieties
-more chance majority of weight loss is fat rather than water
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Effective fat loss cannot occur when the metabolism is low!
-Its a physiological fact that when losing weight we also lose protein from muscle. The faster the weight loss the more protein is used f
or energy and/or protein synthesis and a net loss of protein will always decrease the metabolism.
-As protein is lost from cells it gradually lowers the total lean body weight, this affects the bo
dy composition and lowers the metabolism. As this occurs it means we gradually require less calories to maintain weight so if the present diet is continued results will eventually stop, its even possi
ble to slowly GAIN back weight that was previously lost!
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What is the 'average' person's Basal Metabolic Rate (Metabolism) ?
-As a very rough guide, the average person's BMR is about half a calorie per pound of body weight, per hour. So, if you weigh 140
pounds you will use up approximately 70 calories an hour or 1680 calories per day doing nothing.
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The physical and chemical processes that maintain a life are called, collectively, its "metabolism." A flow of energy is required to run the metabolism of any organism, and the basic energy source for
all birds is the sun. Green plants "capture" the sun's energy in the process of photosynthesis, and birds then acquire it by eating plants or by eating other animals that eat plants. The energy is us
ed to do the work of building tissues, contracting muscles, manufacturing eggs, processing information in the brain, and powering all the other activities of a living bird
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The 5 things you need to know about Basal Metabolic Rate (Metabolism)
-(1) The higher your BMR, the easier it is to lose weight
-(2) Your Basal Metabolic Rate decreases when you go on a diet wh
ich has fewer calories than your normal diet
-(3) Your BMR increases in response to increased physical activity
-(4) Exercise is the ONLY effective way to increase your BMR
-(5) Obesity is no
t caused by a slow BMR
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