Document Type : Research Paper I Open Access I Released under (CC BY-NC) license


1 MSc in Exercise Physiology

2 Associate Professor, Payame noor University

3 Assistant Professor, Sport science research institute of Iran


Aim: The purpose of this study was the acute effect of Isostar Sport-drink on some of the Cardio-respiratory parameters in young soccer players a single bout of exhausting activity.
Method: Statistical sample of this study was 10 young soccer players who ‎were the players of Sepad Tehran Club with average age 17.10± 0.78, high 176.50± 4.85 cm, weight 67.46±5.69 kg and the body mass index 21.63±1.42 kg/m2 which have been voluntarily chosen. The subjects take a progressive protocol which has been simulated to run on a treadmill, and during the protocol, Gas Analyzer was used to measure  physiological parameters including the VO2max, vo2, vco2, RER, VO2AT, VO2AT/VO2. Then, one week later, the subjects returned and drank a Isostar Sport drink, and executed the protocol.
Results: The results of this study showed metabolic parameters (VO2max, vo2, vco2, (RER), VO2AT, VO2AT/VO2) have ‎no significantly changed after consuming Isostar beverage.
Conclusion: we can concluded that the use of Isostar beverage on one occasion, does not lead to a significant change in VO2max،vo2،vco2,  (RER)، VO2AT، VO2AT/VO2 ratesand athletes should be wary to use this sport drink.


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