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Potato Puree can Boost Athletic Performance
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Potato Puree can Boost Athletic Performance

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Highlights:
  • Athletes can choose potatoes as the best race-fueling option for a quick carbohydrate boost during exercise
  • Eating potato puree during prolonged exercise promotes carbohydrate availability during exercise
  • Potatoes can be used as a savory alternative to sweetened commercial gels for athletes to improve their exercise performance

Eating potatoes during prolonged exercise may be just as effective as readily available commercial carbohydrate gels for improving athlete's performance, reports a new study.

"Research has shown that ingesting concentrated carbohydrate gels during prolonged exercise promotes carbohydrate availability during exercise and improves exercise performance," said University of Illinois kinesiology and community health professor Nicholas Burd, who led the research.

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Potato Puree can Boost Athletic Performance

"Our study aim was to expand and diversify race-fueling options for athletes and offset flavor fatigue."

Is Potato Good for Athletes?

"Potatoes are a promising alternative for athletes because they represent a cost-effective, nutrient-dense and whole-food source of carbohydrates," the researchers reported in the Journal of Applied Physiology. "Furthermore, they serve as a savory race fuel option when compared (with) the high sweetness of (carbohydrate) gels."
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Consuming potato puree during prolonged exercise works just as well as a commercial carbohydrate gel in sustaining blood glucose levels and boosting performance in trained athletes, scientists report.

Details of the Study

The scientists recruited 12 participants who were healthy and devoted to their sport, averaging 165 miles (267 kilometers) per week on their bicycles. All had been training for years. To qualify for the trials, the cyclists had to reach a specific threshold for aerobic fitness and complete a 120-minute cycling challenge followed by a time trial.

Participants were randomly assigned to one of three conditions during the experiments: They would consume either water alone, a commercially available carbohydrate gel or an equivalent amount of carbohydrates obtained from potatoes.

The research team standardized what the 12 cyclists ate for 24 hours before repeating the 120-minute cycling challenge and time trial, which was designed to mirror typical race conditions. Throughout the exercise, the team measured participants' blood glucose, core body temperature, exercise intensity, gastric emptying and gastrointestinal symptoms. The researchers also measured concentrations of lactate, a metabolic marker of intense exercise, in participants' blood.

Findings of the Study

"We found no differences between the performance of cyclists who got their carbohydrates by ingesting potatoes or gels at recommended amounts of about 60 grams per hour during the experiments," Burd said. "Both groups saw a significant boost in performance that those consuming only water did not achieve."

Plasma glucose concentrations went up by a similar amount in those consuming potatoes and gels. Their heart rates increased by a similar amount over the water-only cyclists, and they were speedier on the time trial.

Those consuming potatoes experienced significantly more gastrointestinal bloating, pain and flatulence than the other groups, however. This may be a result of the larger volume of potatoes needed to match the glucose provided by the gels, Burd said.

"Nevertheless, average GI symptoms were lower than previous studies, indicating that both (carbohydrate) conditions were well-tolerated by the majority of the study's cyclists,"the researchers wrote.

"All in all, our study is a proof-of-concept showing that athletes may use whole-food sources of carbohydrates as an alternative to commercial products to diversify race-fueling menus,"Burd said.

Source: Eurekalert
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