Giantz11
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Bobo had posted this study a few times and I just thought about something that could be relevent to fat loss. Wanted to get an opinion from some of you guys.
Carbohydrate nutrition before, during, and after exercise.
Costill DL.
The role of dietary carbohydrates (CHO) in the resynthesis of muscle and liver glycogen after prolonged, exhaustive exercise has been clearly demonstrated. The mechanisms responsible for optimal glycogen storage are linked to the activation of glycogen synthetase by depletion of glycogen and the subsequent intake of CHO. Although diets rich in CHO may increase the muscle glycogen stores and enhance endurance exercise performance when consumed in the days before the activity, they also increase the rate of CHO oxidation and the use of muscle glycogen. When consumed in the last hour before exercise, the insulin stimulated-uptake of glucose from blood often results in hypoglycemia, greater dependence on muscle glycogen, and an earlier onset of exhaustion than when no CHO is fed. Ingesting CHO during exercise appears to be of minimal value to performance except in events lasting 2 h or longer. The form of CHO (i.e., glucose, fructose, sucrose) ingested may produce different blood glucose and insulin responses, but the rate of muscle glycogen resynthesis is about the same regardless of the structure.
So here's the question, if we take some carbs pre-work out, then do we become more dependant on muscle glycogen during our wokr out once the availbale carbs have been used up? If this is the case wouldn't the body tend to lean towards FFA's post workout? My thinking here is this is a similar argument to the HIIT form of cardio. Burns alot of glycogen during but the EPOC afterwards burns more fat. Do we get the same results here, if pre-workout carbs are included? Or does it not matter at all, since muscle glycogen will be used during weight training regardless?
Carbohydrate nutrition before, during, and after exercise.
Costill DL.
The role of dietary carbohydrates (CHO) in the resynthesis of muscle and liver glycogen after prolonged, exhaustive exercise has been clearly demonstrated. The mechanisms responsible for optimal glycogen storage are linked to the activation of glycogen synthetase by depletion of glycogen and the subsequent intake of CHO. Although diets rich in CHO may increase the muscle glycogen stores and enhance endurance exercise performance when consumed in the days before the activity, they also increase the rate of CHO oxidation and the use of muscle glycogen. When consumed in the last hour before exercise, the insulin stimulated-uptake of glucose from blood often results in hypoglycemia, greater dependence on muscle glycogen, and an earlier onset of exhaustion than when no CHO is fed. Ingesting CHO during exercise appears to be of minimal value to performance except in events lasting 2 h or longer. The form of CHO (i.e., glucose, fructose, sucrose) ingested may produce different blood glucose and insulin responses, but the rate of muscle glycogen resynthesis is about the same regardless of the structure.
So here's the question, if we take some carbs pre-work out, then do we become more dependant on muscle glycogen during our wokr out once the availbale carbs have been used up? If this is the case wouldn't the body tend to lean towards FFA's post workout? My thinking here is this is a similar argument to the HIIT form of cardio. Burns alot of glycogen during but the EPOC afterwards burns more fat. Do we get the same results here, if pre-workout carbs are included? Or does it not matter at all, since muscle glycogen will be used during weight training regardless?
