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Did you know that what you eat directly after exercising – typically within two hours – can have a significant impact on the health benefits you reap from your exercise?
Consuming sugar within this post-exercise window, will negatively affect both your insulin sensitivity and your human growth hormone (HGH) production.
A recent study in the Journal of Applied Physiology found that eating a low-carbohydrate meal after aerobic exercise enhances your insulin sensitivity. This is highly beneficial, since impaired insulin sensitivity, or insulin resistance, is the underlying cause of type 2 diabetes and a significant risk factor for other chronic diseases, such as heart disease.
In addition, as HGH Magazine explains, consuming fructose, including that from fruit juices, within this two-hour window will decimate your natural HGH production:
“A high sugar meal after working out, or even a recovery drink (containing high sugar) after working out, will stop the benefits of exercise induced HGH. You can work out for hours, then eat a high sugar candy bar or have a high sugar energy drink, and this will shut down the synergistic benefits of HGH.
… If you miss reaching HGH release during working out, you will still receive the calorie burning benefit from the workout. However, you’ll miss the HGH “synergy bonus” of enhanced fat burning for two hours after working out.
This is an extremely important fact to remember if you want to cut body fat and shed a few pounds.
The University of Virginia research team demonstrated that carbohydrates are burned during exercise in direct proportion to the intensity of training. Fat burning is also correlated with intensity. However, the actual fat burning takes place after the workout, during the recovery.
This makes the “Synergy Window,” the 2 hour period after a workout, very important in maximizing HGH, once it’s released during exercise.
… If you are middle-age and want all the benefits from exercise induced HGH, then apply this strategy.”
Fitness expert Phil Campbell, author of Ready, Set, Go! further explains how you can maximize your HGH production by limiting sugar intake for two hours post exercise, in this article on HowToBeFit.com.
Exercising one hour a week and getting the same results as traditional strength training might sound impossible. However, University of Florida orthopedics researchers have developed a system that may do just that, and as you will read in my comment below, the kind of exercise you perform can dramatically reduce the time you spend in the gym while still getting better results than you did before.
The system created by University of Florida researchers uses eccentric (negative) resistance training, which capitalizes on the fact that the human body can support and lower weights that are too heavy to lift.
According to UF Health Science Center:
“Through a system of motors, pulleys, cams and sensors it adds weight when a person is performing a lowering motion, and removes that weight when the person is lifting. As a result, the body starts seeing loads, resistance, and forces that it doesn’t normally see”.
Other scientists have found additional clues that explain how exercise reshapes and strengthens more than just your muscles.
It changes your brain too.
In the late 1990s, researchers proved that human and animal brains produce new brain cells, and that exercise increases the process. But precisely how exercise affects the intricate workings of your brain at a cellular level remained a mystery.
However, a number of new studies have begun to identify the specific mechanisms, and have raised new questions about just how exercise reshapes your brain.
In some studies, scientists have been manipulating the levels of bone-morphogenetic protein (BMP) in the brains of mice. The more active BMP becomes, the more inactive your brain stem cells become and the fewer new brain cells you produce. Exercise reverses some of the effects of BMP.
According to the New York Times:
“BMP signaling was found to be playing a surprising, protective role for the brain’s stem cells … Without BMP signals to inhibit them, the stem cells began dividing rapidly, producing hordes of new neurons.”
Resources:
UF Health Science Center February 23, 2010
PloS One October 20, 2009; 4(10):e7506
Cell Stem Cell July 2, 2010; 7(1):78-89
Journal of Applied Physiology December 31, 2009
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