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A question for Layne or anyone else:
I just can't find any dextrose where I live, so is there any other type of simple sugar I can use to replace dextrose and maltodextrin for the post workout shake?
Is plain table sugar any good?
And how vital is this shake anyway, because I was thinking of just eating a whole food meal after my workout.
Thanks in advance.
I was wondering what your thoughts are on 2 points that i read by coach Christian Thibadeau of T-nation regarding PWO carbs. I'm not looking for a coach debate, i just figured you'd have some interesting insight considering your background in biochemistry
"1. I actually do not recommend post-workout carbs anymore. Catecholamines released during the training session reduces the response to insulin. So post-workout carbs are not super effective... not moreso than only post-workout protein.
2. I now recommend carbs PRE workout. This way you get your insulin spike to start loading up on aminos then you switch to a non-insulin mediated amino acid transport during the workout (muscle contraction is needed for this). This is the best way to get as much aminos as possible into the muscle, and thus to stimulate as much growth as possible"
I was wondering what your thoughts are on 2 points that i read by coach Christian Thibadeau of T-nation regarding PWO carbs. I'm not looking for a coach debate, i just figured you'd have some interesting insight considering your background in biochemistry
"1. I actually do not recommend post-workout carbs anymore. Catecholamines released during the training session reduces the response to insulin. So post-workout carbs are not super effective... not moreso than only post-workout protein.
2. I now recommend carbs PRE workout. This way you get your insulin spike to start loading up on aminos then you switch to a non-insulin mediated amino acid transport during the workout (muscle contraction is needed for this). This is the best way to get as much aminos as possible into the muscle, and thus to stimulate as much growth as possible"
he is mistaken.
catecholamines antagonize insulin insofar as they work to increase glucose release into the bloodstream by increasing glycogen breakdown. But they are not going to inhibit insulin release or effect insulin's actions on muscle protein synthesis or breakdown. We have done post exercise studies (not me, previous people in this lab) and examined protein, protein + carbs, or carbs only; and everytime protein+carbs replenishes glycogen better and has a better anabolic response. I'm afraid he may be confusing the opposing effects of catecholamines & insulin on blood glucose (one will increase; the other decrease blood glucose) and extrapolated that to imply that catecholamines reduce insulin secretion (they don't) or influence insulin's actions on muscle (they don't, insulin sensitivity is INCREASED post workout, not decreased)
Thanks a lot for taking time to answer my question, I'll look for corn sugar and see how it goes.
Is white bread ok for post workout? I've heard it digests pretty quickly.
Easy place to find maltodextrin is a places that sell supplies for home brewing. Although sites like True Protein have stuff like that and you don't even have to leave your house to get it.
catecholamines antagonize insulin insofar as they work to increase glucose release into the bloodstream by increasing glycogen breakdown. But they are not going to inhibit insulin release or effect insulin's actions on muscle protein synthesis or breakdown. We have done post exercise studies (not me, previous people in this lab) and examined protein, protein + carbs, or carbs only; and everytime protein+carbs replenishes glycogen better and has a better anabolic response. I'm afraid he may be confusing the opposing effects of catecholamines & insulin on blood glucose (one will increase; the other decrease blood glucose) and extrapolated that to imply that catecholamines reduce insulin secretion (they don't) or influence insulin's actions on muscle (they don't, insulin sensitivity is INCREASED post workout, not decreased)
Fascinating. So that's why nutrition and dietetics is a 4 year long degree lol!
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