"Ergogenic method" is defined as any means of enhancing energy utilization, including energy production, control, and efficiency (Silver, 2001).
Sport Beverages
Sport beverages for recovery from prolonged aerobic exercise are generally designed to replace water and electrolyte losses due to sweat secretion (Shirrefs et al., 2000).
Fallowfield et al (1995) were the first to demonstrate that supplementing with a carbohydrate-electrolyte drink after prolonged exercise enhances the recovery process. Williams et al (2003) extended these findings and suggested the recovery process can be accelerated beyond a traditional carbohydrate-electrolyte drink if protein is included. This may be due to the stimulation of protein accretion (Levenhagen et al, 2001).
Bangsbo et al (1992) indicated that short duration maximal effort decreases after a 60-minute recovery when nutritional compounds are not ingested during recovery. By contrast, when glycogen stores are elevated, performance during the second bout is maintained.
A potential argument against the use of sports beverages is the notion the drinks fall between foods and pharmaceutical products. They are not classified as drugs, so they don't come under stringent medicine controls, even though they do have a pharmacological effect. Some athletes avoid drinking glycogen-replenishing beverages during exercise because the sugar in sodas is high fructose corn syrup, which damages the liver (Valentine, 2006). Furthermore, soda is very acidic, which is very rough on the stomach. These elements are found in numerous sports beverages (Valentine, 2006). The latter two findings by Valentine suggest that sports beverage consumption at the very least should be limited to essential intake after strenuous exercise when fast refueling is required and time constraints restrict the available methods.
Matt Chappell is a British Sports Conditioning Coach and Personal Trainer with an excellent background in exercise science research. Matt currently works as a freelance research specialist and personal trainer, and also works for the prestigious South west England coaching company Professional Sports and Fitness Ltd.
Matt's particular areas of specialisation include corrective exercise and sports supplementation for the elite athlete and organic nutrition for optimal health in the general population. Matt is a current BSc Hons student and possesses an HND in Sports, Coaching and Exercise Science from the University of Bath. He is registered as an Advanced Fitness Instructor in the UK.
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