  Endurox R4 (R4) Recovery Drink was developed by leading exercise physiologists and based on landmark research redefining how the exercising muscle recovers. R4 contains the patented 4 to 1 ratio of carbohydrate to protein to speed muscle glycogen replenishment and rebuild muscle protein after exercise, antioxidants to reduce post-exercise muscle damage and glutamine to help reduce muscle stress. • Recover faster Effects Of Recovery Drinks After Prolonged Glycogen-Depletion Exercise. This study found that "recovery from glycogen-depleting exercise was significantly enhanced by R4 Recovery Drink when compared to Gatorade. In addition, R4 Recovery Drink decreased the formation of final oxidation products, when compared to Gatorade." Eight male cyclists performed a two-hour cycling exercise bout followed by one to three 5-minute sprints. A four-hour recovery period ensued in which the subjects were given 24 ounces of either R4 or Gatorade. A performance test to exhaustion was then conducted. The recovery phase showed significant increases in both plasma glucose and insulin following R4 ingestion as compared to Gatorade. There was an average 66% increase in time to exhaustion during the performance ride following Endurox R4 ingestion compared to Gatorade. Final oxidation products following R4 ingestion were significantly decreased as compared to Gatorade ingestion. Carbohydrate protein complex increases the rate of muscle glycogen storage after exercise. Study found that "post-exercise muscle glycogen storage can be enhanced with a carbohydrate-protein supplement as a result of the interaction of carbohydrate and protein on insulin secretion." Nine men cycled for two hours on three occasions to deplete their muscle glycogen. After each workout they drank a carbohydrate, protein, or carb-protein supplement. The rate of muscle glycogen replenishment in the carbohydrate-protein treatment was 38% greater than in the carbohydrate treatment and more than three times greater than in the protein treatment.
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