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Hydration for Sports

Oct 8, 2014 | Uncategorized

Though most of the warm weather is behind us now, student-athletes will still be heating up with Fall sports across Ontario.

In order to perform at your best, and stay healthy while participating, check out these tips from medical expert Kathleen Zelman.

Read the full column on webmd.com

When it’s warm, your body perspires more to help you cool down. And depending on the temperature, humidity, and the nature of your activity, you might not even realize how much you are perspiring.

Don’t rely on thirst alone to tell you how much you need to drink. To keep those muscles working and avoid fatigue; it’s extremely important to drink plenty of liquids before, during, and after the activity. 

Drink Up — Before, During and After

A good guideline to use when preparing for an outdoor workout, whether it’s walking, running, biking, or tennis, is to drink about two cups of fluid two hours before the activity. That helps make sure you are well-hydrated before you ever go outdoors.

Then, during the activity, try to drink 4-6 ounces every 15-20 minutes to keep your muscles well-hydrated. If you are planning an hour-long walk or gym workout, fill a water bottle with about 16 ounces (2 cups) and take it with you.

Last, drink up after you’re finished with your exercise. If you really want to be precise, weigh yourself before you start exercising and again when you are finished. For each pound of water weight you lose, drink 20 ounces of fluid.

Which Liquids Are Best?

For most outdoor activities, good old-fashioned tap water does the trick. If your activity lasts an hour or more, either fruit juice diluted with water or a sports drink will provide carbohydrates for energy plus minerals to replace lost electrolytes (sodium, potassiummagnesium) in your sweat.

Sports drinks like Gatorade, Powerade, and All Sport can give you a needed energy boost during your activity. They are designed to rapidly replace fluids and to increase the sugar (glucose) circulating in your blood.

Read the label to determine which sports drink that is best for you. Ideally, it will provide around 14 grams of carbohydrates, 28 mg of potassium, and 100 mg of sodium per 8-ounce serving. The drink’s carbohydrates should come from glucose, sucrose, and/or fructose — all of which are easily and quickly absorbed. It shouldn’t be carbonated, as the bubbles can lead to an upset stomach.

Most sports beverages are well-diluted and contain relatively few calories. If the flavor of a sports drink helps you drink up and maintain hydration, by all means enjoy. If you’re worried about the added calories, try diluting your sports drink with water or pouring it into a thermos packed with ice.

What About Fitness and Designer Waters? 

Fitness waters fall somewhere between the sports drinks and plain water. They contain fewer calories and electrolytes than sports drinks, but offer more taste than plain water. The choice is yours: once again, if drinking these beverages helps you stay hydrated, go for it.

These “super-waters” are advertised as being enhanced with everything from vitamins, oxygen and glucose, to alleged fat-burning minerals. Keep in mind that the FDA does not require proof of this kind of claim. So think of these products as designer waters that serve the primary purpose of hydration and little more.

Beyond Hydration

Fluids are vital to help your muscles function throughout your activity — but so is your blood sugar. You need to eat a light meal or snack of at least 100 calories about an hour or so before your activity. The nutrients from the snack will help you perform better and keep hunger from interfering with your activity.

The best snacks combine healthy carbohydrates, protein, and a small amount of fat. Fruit, yogurt, nuts, and granola bars are all good examples.”

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