Archive for the ‘Exercise Tips’ Category

Staying Hydrated is Essential to Health

September 15, 2009 @ 12:57 pm posted by

You can improve performance by delaying dehydration

Hydration is often left out of nutrition, but it shouldn’t be. Staying hydrated is important not only to improving performance in sports and other activities, but it plays a vital role in helping maintain a balanced diet and healthy lifestyle.

Necessary to the healthy function of all internal organs, water must be consumed to replace the amount lost each day during basic activities. Water is also proven to aid in weight loss. It helps you feel full so you eat less, quenches thirst without adding calories and allows your body to function at its top capability.

Keeping hydrated helps muscles look more toned, a look that many people desire. Being hydrated also helps your skin look and stay healthy.

Water regulates the body’s temperature, cushions and protects vital organs, and aids the digestive system.

In 2004, the Food and Nutrition Board released new dietary reference intakes for water. It is recommended that women consume 2.7 liters daily and men consume 3.7 liters through various beverages, 80 percent, or in food, 20 percent.

Active individuals need even more, particularly if they’re exercising in hot weather. This is especially important during the 24 hours prior to vigorous exercise. During exercise, our body produces more heat, causing sweat to cool us down. When we sweat out our water supply, we must consume more water to keep our core temperature down.

In one hour of exercise, the body can lose more than a quart of water, depending on exercise intensity and air temperature. If there is not enough water for the body to cool itself through perspiration, the body enters a state of dehydration.

For people who regularly exercise, maintaining a constant supply of water in the body is essential to performance.
Dehydration leads to muscle fatigue and loss of coordination. Even small amounts of water loss may hinder athletic performance.

In a dehydrated state, the body is unable to cool itself efficiently, leading to heat exhaustion and possibly heat stroke. Without an adequate supply of water, the body lacks energy and muscles may develop cramps. To prevent dehydration, you must drink before, during and after a workout.

During exercise, water is the best fluid replenisher for most individuals, although sports drinks help replace lost electrolytes during high intensity exercise exceeding more than 60 minutes. Keeping hydrated can improve performance by delaying dehydration and maintaining balanced blood-sugar levels during exercise. It also lowers the risk of catching a cold by boosting your immune system.

Drink 17-20 ounces of water two to three hours before the start of exercise. Drink 8 ounces of fluid every 20 to 30 minutes prior to exercise or during warm-up. Drink 7 to 10 ounces of fluid every 10 to 20 minutes during exercise. Drink an additional 8 ounces of fluid within 30 minutes after exercising. Drink 16-24 ounces of fluid for every pound of body weight lost after exercise.

Water is your best option. Tea (non-caffeinated and unsweetened) and 100 percent juice, not cocktail drinks, are good alternatives if you just need something else. Sports drinks are also good for your body during and after exercise.

Coffee and alcohol don’t need to be nixed completely, but should be consumed in very small amounts. Two cups of coffee a day isn’t going to help your body and scientific evidence suggests alcohol consumption can interfere with muscle recovery after exercise and negatively affect a variety of performance variables.

As far as options that you should stay away from, soda is at the top of the list. While drinking one soda probably won’t hurt you, it provides little hydration. In fact, frequent consumption of soda can be more harmful to your body than any of the other drinks listed above, with the exception of alcohol.

In the end, staying hydrated by drinking water throughout the day and especially during exercise is highly recommended to support good nutrition and healthy living.

Elaine Hastings is a registered dietitian and owner of Associates in Nutrition Therapy in Fort Myers. Contact her at Elaine@eatrightRD.com or visit her at AssociatesinNutrition.com.

Share

Nutrition tips for young athletes

September 3, 2009 @ 8:40 am posted by

Back-to-school means back to the courts and fields for student athletes. Reaching peak athletic performance doesn’t mean you have bulk up on carbohydrates or chug the latest sports and energy drinks. Student athletes have unique nutritional needs, requiring approximately 2,000 to 5,000 calories per day, depending on body composition, amount of exercise and other health factors.

Here are some tips for fueling your body for optimal strength and energy:

-Eat a variety of foods including protein, carbohydrates, fats, calcium, minerals and vitamins; lean proteins, fruits and vegetables and dairy for calcium provide a balanced diet

-Avoid supplements and steroids, which can have negative side effects on your health

-Avoid extreme diets. Youth athletes require the proper amount of nutrition and depriving your body of proper nutrients can cause decreased energy, muscle loss and sometimes, more serious health problems

-Hydrate with water; avoid caffeine and sugary drinks
Before practices and games:

-Be sure to eat a small, balanced meal approximately 2 to 4 hours before the event and include proteins and carbohydrates such as a turkey sandwich, or pasta and tomato sauce

-No time for a meal? Eat a light snack less than 2 hours before the event such as low-fiber fruits, crackers or yogurt

-Hydrate by drinking plenty of water before, during and after sports activities; avoid caffeine

Because body sizes and activity levels vary from person-to-person, you need to alter your diet to fit your individual needs. For more information, visit http://www.mypyramid.gov/ and create a personalized plan that works best for you.

Share