A study performed at the University of Connecticut showed that exercisers who switched from a balanced diet (proteins, carbohydrates and fats) to a low carb diet experience the following drop's in athletic performance. There was a 7 - 9 percent drop in muscle power and 6 percent drop in VO2 max of cardiovascular performance. Another factor to consider is the recuperation of muscle between workouts is decreased on low carb diets. So why would someone go on a low carb diet, especially when exercising? Because the initial weight loss that comes from the glycogen depletion is believed to be fat loss.
We have become so focused on weight loss, that any weight loss is seen as good. As identified earlier in this article glycogen is a mixture of glucose and water and the majority are stored where? You guessed it, the muscle. A large percentage of the initial weight loss is coming from muscle loss. I don't think any exerciser desires to have smaller muscles as a result of their exercising. The goal of exercise should be to improve body composition, the percentage or ratio of muscle to body fat. This can only be accomplished by losing fat without the loss of muscle tissue. Maintaining muscle mass is vital to sustainable weight control. The following steps will protect your muscles as you are losing fat, while reaching your ideal weight and ideal body composition.
1. Cycle fat burning days with recovery days.
The secret to losing fat without losing muscle starts with not being too aggressive or extreme with your reduction of carbohydrates. You need carbohydrate management, not carbohydrate elimination. Over the last 20 years, with more than 10,000 clients I've found by reducing carbohydrates by 20% of daily needs and within 48 hours replenishing the glycogen in the muscle by eating 100% of daily carbohydrate requirements, allows for fat loss, without muscle loss. In essence you have two fat burning days, then a recovery day. By doing this you'll have the best of both worlds. You will experience fat loss that averages between 1-2 pounds weekly, while muscles are being well fed. You never drastically deplete the glycogen stores in the muscle so athletic performance is not affected like on a low carb diet.
2. Exercise on days where you are receiving more carbohydrates.
Exercising on days where muscle are getting more carbohydrates for fuel and taking days off from exercise when you are being aggressive about fat loss. One of the most difficult thoughts for exercisers to accept is that most of the results from exercise come when we are not exercising. They come after we exercise and in direct response to how the muscles receive nutrition after exercise.
3. Exercise 1.5 - 2 hours after eating when blood sugar levels and insulin levels are slowly declining.
As insulin levels increase in response to a rise in blood sugar after a meal, the cells are in an anabolic state (receiving nutrients). Insulin is the hormone that feeds are cells. As blood sugar levels drop, insulin levels drop and the pancreas produces the hormone glucagon and nutrients stored in the fat cells are released to the blood and used for energy. The management of this blood sugar rise and drop is important. If blood sugar levels go to high insulin feeds the muscle cells and deposits excess into fat cells. If insulin levels go too low, the muscle cells are being under fed. A slow rise in blood sugar provides good nutrition to the muscles and a slow drop allows glucagon to take from the fat cells. Timing your exercise to this blood sugar decline allows the muscles to receive from the fat cells more effectively. It is important to never exercise without having at least one meal left in your day so that muscles can recuperate from exercise.
Nice information ! Thanks for sharing.......
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