First, because its mentioned in a magazine or by a certain nutrition "expert" or "guru" does not mean that its good for you. They don't always have your best interest in mind. I won't mention any names but some "guru's" are only interested in helping their clients to maintain a specific look (putting them on highly restrictive calorie diets so they lose weight while ingesting certain carbs at certain times to maintain that muscular look) BUT on one hand you can't blame them either as thats what some people want. " I want to look just like him" Of course all this comes at an expense. Not only financially but to your health as well. Without going on further here let me reiterent this point I made in a previous post. And that is some body builders often do stupid, high risk things to themselves. Contrary to popular belief some are not a good models of healthy practice and when in fact have bad health themselves. As the age old saying goes, "you can't judge a book by its cover." The same when looking at a new car...you have to check under the hood and not just the exterior to determine the health and well-being of the car. Dig?Quote:
Originally Posted by zodiac666
As for studies...here is an abstract of a little experiment from the journal Medicine and Science in Sports and Exercise that finds that high CHO drinks alter mood and focus.
POST-EXERCISE CHO DRINKS MIGHT HAVE ADVERSE PSYCHOLOGICAL EFFECTS
Bloomer, R. J., Baldewicz, I. I., Keller, H. A., Vukovich, M. D., & Sforzo, G. A. (2000). Alterations in mood following acute post-exercise feeding with variance in macronutrient mix. Medicine and Science in Sports and Exercise, 32(5), Supplement abstract 121.
The role of post-exercise feeding patterns on mood state were investigated in resistance-trained men (N = 10). Two to four hours following a standardized exercise routine, Ss were given: whole food (35 g protein, 75 g CHO, 7 g fat), a supplemental drink, an isocaloric CHO beverage, or a placebo. The POMS was used to measure mood states.
Results suggested that excessive liquid CHO consumption following resistance exercise night cause acute feelings of fatigue, irritability, and mental dullness.
Implication. Following resistance exercise, the consumption of a balanced mixed meal might be psychologically more beneficial than a CHO drink.
Here is just another one showing what happens when you ingest a high carb meal or drink after your workout. You basically shut down this enhanced sensitivity and diminished insulin sensitivity (as meaured by GLUT 4).
J Nutr Biochem. 2005 May;16(5):267-71. Related Articles, Links
Effect of postexercise carbohydrate supplementation on glucose uptake-associated gene expression in the human skeletal muscle.
Cheng IS, Lee NY, Liu KL, Liao SF, Huang CH, Kuo CH.
Department of Nutrition and Food Sciences, Fu-Jen Catholic University, Taipei, Taiwan 242, ROC; Chungtai Institute of Health Sciences and Technology, Taipei, Taiwan 406, ROC.
We previously found that the exercise-induced elevation in GLUT4 mRNA of rat muscle can be rapidly down-regulated when glucose is given immediately following exercise. The purpose of this study was to determine the effect of postexercise carbohydrate diet on GLUT4 and hexokinase (HK) II mRNA levels in the human skeletal muscle. Eight untrained male subjects (age, 20.7+/-3.1 years) exercised for 60 min on a cycle ergometer at a 70-75% maximal oxygen consumption. The postexercise dietary treatment was performed in a crossover design. Immediately after the exercise, a diet with 70% carbohydrate content (1 g per kilogram of body weight; 356+/-19.8 kcal) was given to half of the subjects (eaten in 10 min) followed by a 3-h recovery, while the control subjects remained unfed for 3 h. Biopsies were performed on the deep portion of the vastus lateralis muscle of all subjects immediately after the exercise and 3 h after the carbohydrate ingestion. Blood glucose and serum insulin concentrations were measured every 30 min for 3 h. At the end of the 3-h recovery, blood glucose and serum insulin levels were not different from control levels, indicating that the oral carbohydrate was mostly disposed in the body within 3 h. In addition, GLUT4 and HK II mRNA levels were significantly lowered in the exercised human skeletal muscle in subjects receiving the carbohydrate diet. In conclusion, the present study demonstrates that GLUT4 mRNA and HK II mRNA in the exercised human skeletal muscle were significantly lowered by a high-carbohydrate diet.