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Birdseye: Health Tips from the Blogosphere

Four myths about exercise and weight loss

There is so much “advice” about exercise and weight loss that it is difficult to know what will really help.  Research suggests that, contrary to popular belief, regular gentle exercise will not help you lose weight.  Here are four popular myths about exercise and weight loss, which are still often quoted despite scientific evidence indicating that they are simply untrue.
 

1.  Losing weight is all about eating less and exercising more

The reality is a little more complex than this common assumption suggests.  Not only have studies shown that exercising more contributes very little to weight loss, but also there is evidence that it is more important to consider what we eat than how much, with the Mediterranean diet proving particularly effective.
 

 2.  To lose weight it’s best to exercise before a meal

It’s often stated that in order to lose weight, it’s best to exercise on an empty stomach.  In fact, it seems that the best time to exercise is after a meal, since the exercise makes you burn more calories and also suppresses your appetite.
 

 3.  To get fit you need to exercise for 20 minutes a day

Government health agencies frequently claim that you need 20 minutes of exercise a day in order to stay fit.  Although you need much more than that to lose weight, as explained below, research suggests that just 10 minutes of gentle exercise a day can help you improve your fitness levels.
 

 4.  Regular aerobic exercise will help you lose weight

Research outlined in the latest issue of What Doctors Don’t Tell You suggests that moderate exercise has very little effect on weight loss.  In fact, it seems that unless you’re prepared to spend 60 to 90 minutes a day exercising, you are very unlikely to lose any weight.  If you are new to WDDTY, you can read this report for free by clicking here.
 

If you’d like to find out more about the myths about losing weight, visit our weight loss archive.  If you’re interested in living healthily in general, have a look at our guide to living longer and more healthily.
 

To find out why What Doctors Don’t Tell You is described by many as the best health journal in the world, claim your free trial issue now.

Published 20 July 2007 17:43 by Birdseye

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Comments

 

Charlie said:

I think the link between exercise and weight loss needs to be explored and explained more. I think the type of exercise that you do could make a significant contribution to the overall goal.
July 29, 2007 14:40
 

infinitepossibilities said:

Researchers at the University of NSW and the Garvan Institute studied 45 overweight women over 15 weeks, putting them through a 20 minute cycling regime in which they sprinted on a stationary bike for eight seconds followed by 12 seconds of cycling lightly. "They lost three times more weight as other women who exercised at a continuous, regular pace for 40 minutes," UNSW Associate Professor Steve Boutcher said. Their success was due to higher amounts of chemical compounds called catecholamines that are produced in increasing amounts when linked to interval sprinting; the resulting chemical reaction drives greater weight loss. The scientists believe the regime would also be applicable to swimming, walking, running and rowing.

Professor Boutcher said other types of interval training use longer interludes which are not as effective for overweight people and said the current government recommendations for exercise are largely ineffectual.

"Walking for 60 minutes, seven times a week does not result in much fat loss, usually 1.15kg over 15 weeks – for a lot of overweight people this is going to be a revolution," he said.

The scientists found their method could "spot reduce" troublesome areas such as legs and buttocks.

August 9, 2007 18:37

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