Sun, Nov-03-02, 09:39
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Plan: Zone
Stats: 255/242/230
BF:21%/15%/8%
Progress: 52%
Location: Philly
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Marie B ...
To quote Nat from early on in this thread ...
Quote:
Carbohydrate (glycogen) is your body's primary and preferred energy source. When your primary fuel source is in short supply, this forces your body to tap into its secondary or reserve energy source; body fat.
If you do cardio immediately after eating a meal, you'll still burn fat, but you'll burn less of it because you'll be burning off the carbohydrates you ate first . You always burn a combination of fat and carbohydrate for fuel, but depending on when you exercise, you can burn a greater proportion of fat relative to carbohydrate.
If doing cardio first thing in the morning is not an option for you, then the second best time to do it would be immediately after weight training. Lifting weights is anaerobic (carbohydrate-burning) by nature, and therefore depletes muscle glycogen. That's why a post lifting cardio session has a similar effect as morning cardio on an empty stomach.
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Even if you are eating an LC diet, you are still consuming some level of carbs at each meal ... plus, if protein is circulating it can be converted glucose and used for energy by the body.
In a fasted state, you can be sure that more of the burned calories are coming from fat. |