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I Need More Energy!
2009-03-21 21:27:24

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You\'re in the middle of a long workout and you\'re wondering how in the world you\'re going to muster up enough energy to finish. We\'ve all been there. It's as though someone has unscrewed the cap and let all the fuel out of our tank.

So what should you reach for to help you comfortably finish your workout? Sports-product manufacturers have come up with all sorts of new items to help you do just that. But are they really any better than the old standards: water, a banana or a bagel?

Before we answer that question, a caveat: There is no single solution that works for everyone. Once you explore your options, you can determine which is the best for your body\'s particular needs.

Choices, choices, choices

There are few things more essential to maintaining performance than staying hydrated throughout your workout. Water is an obvious first choice, but you may need extra energy in the form of carbohydrates to get through a particularly long or strenuous exercise session.

If this is the case, energy bars or gels and sports drinks may be the answer to your depleted energy supply. What follows is a breakdown of the pros and cons of each.


Water is a calorie-free source of the fluid your body needs to keep going. There is no better way to compromise performance than to exercise while you\'re dehydrated. Research shows that your heart rate increases eight beats per minute for every liter of sweat lost during exercise. This can occur in as little as 30 minutes of exercise depending upon the environment and your intensity.

This increased heart rate, combined with inefficient cooling, causes your temperature to elevate. This not only compromises performance, but can lead to heat illness as well.

Most experts recommend drinking at least a cup (four to 10 ounces) of water every 15 minutes of exercise.

Sports drinks

Activities lasting longer than one hour can leave your body wanting more than just water. Sports drinks, which typically contain about 50 to 70 calories, plus vitamins and minerals, are an easy answer to both the fluid and carbohydrate drain that comes from prolonged activity. Research shows that runners and cyclers who consume a sports drink during races not only finish more quickly, but rate their exertion levels lower than those who consumed a placebo beverage.

It is important to realize, however, that this was true only during longer-duration activities. You should be able to complete your 30-minute run or 45-minute step class without the aid of additional carbohydrates.

Energy gels and bars

Energy gels are a relatively new alternative to traditional sports drinks or bars. They feel similar in texture to pudding and are easy to eat and easy for your stomach to digest. They typically contain about 70 to 100 calories and may also include caffeine and other ergogenic aids.

Energy bars have been around forever and are eaten more often as a snack than as an energy replacement during exercise. Today, the market is saturated with numerous flavors and types, each with a different ratio of fats, carbohydrates and protein. The key is to find one that tastes good and doesn\'t upset your stomach.

At 110 to 250 (or more) calories each, energy bars also provide extra vitamins, minerals and fiber, which ups their nutritional value considerably. But eating an energy gel or bar is not enough. You must consume enough fluid to replace what\'s been lost as well as to help speed digestion.

How you choose to refuel during a workout depends on your body\'s reaction to what you put in it. For sessions lasting less than an hour, water is sufficient so long as you consume at least four to 10 ounces every 15 minutes.

This ACE Fit Fact is taken from ACE FitnessMatters® magazine. Want more information like this delivered directly to your home? ACE FitnessMatters, the bi-monthly magazine from the American Council on Exercise® (ACE®), is the source for the most accurate, up-to-date fitness information you need to live a healthy, active life. Subscribe to ACE FitnessMatters Magazine online or call 1-888-825-3636. The American Council on Exercise does not endorse or promote the companies, products or services that reside on this website. ACE does not receive revenue generated from any organizations that advertise on this Web site. Copyright 2003 American Council on Exercise. All Rights Reserved.

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