“People used to come into the doctor’s office and say, ‘My metabolism is broken!’” says James Hill, PhD, at the University of Colorado. “We never had any evidence that it actually was, until recently. We were wrong – it was!” While exercise may not be as important for weigh loss as calorie restriction, as Hill says, it’s important in another way: It begins to repair a broken metabolism. “A lot of what we know in this area comes from NASA, of the bed-rest studies,” he says. “Within a couple of days of non-activity, the metabolism becomes inflexible. You start moving again, and it does start to change.” Your metabolism may not ever go back to “normal” (more on this below), but the evidence indicates that it can indeed pick up again, in large part through moving your body every day.
This is a large part of why exercise is critical in the maintenance phase, which is well known to be more difficult than the weight loss phase. Essentially, it buys us some wiggle room, says Michael Jensen, MD at the Mayo Clinic. “Exercise is very, very important for maintaining lost weight, and people who are not physically active are more likely to gain weight. We think it’s partly because in the extra calories burned from physical activity, you have a bit more flexibility in food intake, so you’re not so much relying on ridged changes in eating habits; it makes it more tolerable.” Visit Website
posted @ Sunday, October 30, 2016 2:46 PM