In a post resistance workout setting there seems to be no added benefit to consume an extremely high GI carb source such as dextrose, waximaize or maltodextrin. In fact, like mentioned, I would recommend a mix of a high and moderate glycemic index carbohydrate source to generate an insulin response and maintain it over a greater period of time. The study does not say that having a high GI carbohydrate source such as dextrose, maltodextrin, or waximaize post workout is not effective. It is effective, it’s just not any MORE effective than having a moderate carbohydrate source or a mix. I would try a few different protocols and determine what your body responds to best.