Does anyone know why people go for a 50%-50% split of glucose (or dextrose) and maltodextrin? Since maltodetrin has a GI rating of 150, I would assume that consuming it alone after the workout would shoot insulin up in order to counteract catabolic hormones and deliver proteins into the muscles. Why do people use glucose? Brian
I think it’s because dextrose is a simple sugar and maltodextrin is complex. Therefore you want the benefits of each. I’m not 100% sure though.
Ive answered this already…search the archives of this forum…
i’ll take a wild-assed stab at this one. maybe it’s because glucose is already…well, glucose. no further processing required, hence immediate uptake. maybe the malto times out to release after the glucose. so you get an immediate kick via glucose with a timed release via the malto? maybe this gives you a nice and smooth response? just a guess. :o) kevo
John, I would have checked but the search function isn’t working, at least not on my version of Netscape. Kevo, I understand that this is the argument for using both, but what I’m wondering is what advantage is there to giving the muscle a rapid influx of sugar in the blood stream after exercise over giving it a surge of insulin after exercise (and protein to use)? In other words, post-workout, does the muscle need a tidal wave of carbohydrates or just an insulin boost that could be caused by either a tidal wave of simple carbs or the slow drip of high GI polymers? Brian
Brian- The search function is working fine. You have to type in what you’re looking for and then click either “subject” or “author”; you can’t just hit return. Hope this helps. Same goes for the search engine at T-mag, BTW.
Chris, I use Netscape 4.77 and it’s not working. Clicking “subject” or “author” opens a frame with this message:
"Method Not Allowed
The requested method POST is not allowed for the URL /forum/index.html."
Maltose (maltodextrins), pure, 10 g 105
Glucose powder, Glucodin™, 10 g 102
Not sure what the deal is then, Brian. I’m on Netscape Communicator 4.06 and it’s working fine. You might want to e-mail one of our computer guys and ask. Try Matt at mr@t-mag.com and maybe he can help you out.
how i understand it is that post workout you need a way to swing yourself from catabloic to anabolic asap. of course you need an insulin spike to do this and just stuffing your muscles with high GI carbs really won’t do the trick. you need to stuff some protein in there as well. take in the wrong kind of protein and it won’t uptake fast enough or will dampen the insulin spike. certain ratios of the right proteins and carbs create a synergistic effect which actually yields a better insulin spike than carbs alone and creates the optimal post workout situation. this is what surge was designed specifically to do. the spike is required because post workout you need to get yourself anabolic while your glycogen window is wide open. as time wears on the window begins to close and is less responsive to glycogen uptake. the slower high GI polymers taper off and allow you to take full advantage of the entire window. if i had to take a guess i would say that the initial insulin spike is the most important, but i could be wrong. Surge must have been a bitch to design because of all that tricky timing. hats off to JMB. kevo
The search function is working fine for me in both Netscape and IE. (Yes, Netscape 4.77) That error indicates a server problem, not a browser problem. If you try the search again, it should work. If it doesn’t, the only thing that might help is clearing your cache if you’re not on a LAN, although I don’t think that will help, either.
Ok, I did the darn search for you…Here’s what I posted!
Malto and Dextrose are chemically different and treated as such in the body! The GI is high for both but dextrose is just a bunch of free single sugar molecules while malto is a chain of sugar molecules. It’s like the diff between an amino acid and a peptide. Researchers have known for years that malto is best for glycogen replenishment. In addition, it is best handled by the stomach because of osmolarity (since it is a large chain, there are less free particles in solution). That makes it easier to digest. However there are advantages to dextrose too but just not too much. The best p-w drink is a combo of both. If youre gonna drink anything during the workout, malto might be best.
Thanks for the search advice, everyone. I’ll check with the tech guys over here.
To John "The Exasperated Nutrition Expert" Berardi, I didn't mean to prompt you to do the search for me! Thanks though. Actually, I remember that post from a while back, but alas, it doesn't answer my confusion.
Both kinds of high-GI carbs will cause an insulin spike. Both will lead to glycogen replenishment (and for the long-term, maltodextrin would be better). So what will the simple carb do that the polymer can’t? Brian