The Cobourn Critique #2
Does the type of bariatric surgery affect your metabolism?
When speaking with patients who are considering the Lap-Band procedure for morbid obesity, it is very common to hear be offered the explanation that their inability to lose weight is due to a problem with a slow “metabolism”. It will be of benefit to anyone considering bariatric surgery to explain exactly what your metabolism is, and how it can be affected.
When speaking of metabolism, we are talking about a combination of the amount of energy (calories) we utilize just being alive which is called the Basal Metabolic Rate (BMR), plus the number of calories we burn being physically active and keeping our body temperature steady at 37⁰C.
BMR is determined for the most part, by your lean body mass, or in other words, the amount of muscle (and bone) you have. Fat tissue is not very active and therefore does not significantly contribute to your BMR. One of the major advantages of the Lap-Band procedure is that the weight loss occurs typically at the rate of 1 – 2 pounds per week.
Many studies have shown that at this rate of weight loss, patients will preferentially burn fat while building muscle. When you lose fat, while maintaining or increasing muscle mass, this type of weight loss will increase your BMR at the same time you are losing weight. Thus you have the secondary benefit of increasing your BMR while you lose weight.
Other bariatric surgery procedures such as the gastric bypass lead to weight loss at a much higher initial rate. Studies have shown that this rate of weight loss will reduce the lean body mass and may actually reduce your BMR.
The point is that the gradual and steady weight loss achieved with the Lap-Band procedure will have a beneficial effect on your metabolism, making ongoing weight loss more efficient.
~CC
Digg
del.icio.us
Technorati
StumbleUpon
Reddit
Furl