The effects of two type ergogenic beverages (Zamzam and Isostar) on metabolic responses to short and long high-intensity intermittent exercise in soccer players

The purpose of this study was to determine the effects of two ergogenic drinks on metabolic indices changes in soccer players. Forty eight soccer players (24 women and 24 men) with mean age of 18.7 ± 4.7 years were selected as two groups, long-term and short-term intermittent exercise. Then, each group randomly was divided into three; Zamzam (SD), Isostar (ID) and placebo (P) groups. Long-term intermittent exercise includes six stages of exercise in two half time. Fifteen minutes after breakfast, players have drunk 6 ml/kg of beverage and 1 ml/kg at the end of stages 1, 2, 4, and 5. In addition, they drank 4 ml/kg at the end of third stage (1st half time). Before and immediately after long-term intermittent exercise, blood glucose, insulin and triglyceride levels were measured. Blood lactate was measured at rest, 3 minutes after the first and second half time. Short-term intermittent exercise, includes three complete stages of RAST test with 10 minutes rest. Fifteen minutes after breakfast and at the end of each stage 2 ml/kg beverage were drunk. Glucose and blood lactate levels were measured at rest and immediately after each stage of RAST test. Results showed that a significant increase in insulin and blood glucose levels after long-term activity in SD and ID groups. In addition, there was a significant increase in blood glucose levels at 3 minutes after every stage of the RAST test in SD and ID groups. However, in any variables, no significant difference was observed between ID and SD groups. It seems that the use of Zamzam and Isostar relatively the same rate increase level of blood glucose and insulin after long-term high- intensity intermittent exercise. Therefore, we can recommend to athletes to consume synergy beverage of Zamzam which is produce in own country.