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DIET TO IMPROVE PERFORMANCE
Optimal nutrition is attained with sound dietary
practices that are applied on a continuing bases, not just a few hours before or during
competition. Nutritional factors can conceivably influence performance at almost any stage
during training or competition.
Performance Diet Guidelines
- Energy intake that maintains desirable body
weight
- 6-10 grams of carbohydrate per
kilogram body weight/day (about 60-70% of total calories)
- 6 grams/kilogram body weight for one hour of
training per day
- 8 grams/kilogram body weight for two hours of
training per day
- At least 10 grams/kilogram body weight for three
hours of training per day
- 10-15% protein or 1.5-2.0
grams/kilogram body weight/day
- 20-30% fat
- Plenty of fluids to prevent dehydration
- Sufficient amounts of vitamins and minerals
The ultimate competitive ability of an individual
is in part, related to his or her capacity to train maximally. Consequently, every effort
must be made to ensure all nutritional needs are met during this period. Proper
nutritional management during training will also serve to support the athlete during
active competition.
PRE-EXERCISE MEAL
Fluid needs:
- Drink lots of fluid 24-36 hours before exercise
- Drink at least 16 ounces of fluid 2 hours before
exercise
- 8-20 ounces water approximately 15 minutes before
exercise
- Drink at least 4 to 8 ounces of fluid immediately
before exercise
Carbohydrate needs:
1-4.5grams/kilogram body weight 1-4 hours before
exercise (1 gram per kilogram one hour before; 4 grams per kilogram four hours before)
or 300-800 calories 1-4 hours before exercise
(300-400 calories one hour before; 700-800 calories four hours before)
or 2 calories/pound body weight 1 hour prior to
exercise
If consuming a Sports Drink*, drink 16 oz (.5 liters) 1 hour before exercise
If consuming a High-Carbohydrate Energy Drink* or Sports Shake*,
drink 16 oz (.5 liters) 2-5 hours before exercise
If consuming a Sports Bar*, one bar 2 hours before exercise
If consuming Energy Gel*, 1 packet prior to exercise (when taking an energy gel make
sure to drink plenty of water with it).
Reduce the size of the meal the closer to exercise
it is consumed
*Note: During exercise lasting less than an hour
there is little evidence of physical performance differences between consuming a sports
food and plain water.
Preparing for Morning Event/Exercise
The night before:
- Eat hearty, high carbohydrate dinner and bedtime
snack
- Drink at least 8 ounces of fluid with meals and
snacks
The morning of:
- Eat a light, high carbohydrate, low fiber snack or
breakfast (allow 3 hours for the food to digest)
- Drink at least 8 ounces of fluid with meals and
snacks
- If your body cant handle any breakfast, eat a
late snack before going to bed the night before
Preparing for Afternoon Event/Exercise
The night before:
- Eat hearty, high carbohydrate dinner and bedtime
snack
- Drink at least 8 ounces of fluid with each meal and
snack
The day of:
- Eat hearty, high carbohydrate, low fiber breakfast
- Eat light lunch that is moderate in calories, low in
fiber and high in carbohydrate (allow 4 hours for food to digest)
- Drink at least 8 ounces of fluid with meals.
Preparing for Evening Event/Exercise
The day of:
- Hearty carbohydrate- rich, low fiber breakfast and
lunch
- Drink at least 8 ounces of fluid with meals
- Moderate calorie, high carbohydrate snack 1 or 2
hours prior to event or exercise
All Day Event
The day before:
- Cut back on exercise
- Eat high carbohydrate meals at breakfast, lunch and
dinner
- Drink at least 8 ounces of fluid with meals and
snacks
The day of:
- Follow the "pre exercise" and
"nourishment during exercise" meal plans
- Plan to snack every 1-1/2-2 hours on complex
carbohydrates
Athletes should initially test the effectiveness
and timing of pre-exercise meals on exercise capacity during training and not prior to an
important competition. If you know that you will be unable to tolerate any food before
exercise, make a special effort to eat well the day before and have an extra-large evening
snack.
DURING EXERCISE
Fluid needs:
- 4-10 ounces water every 10-20 minutes
- Avoid concentrated beverages (soda pop, fruit juice,
fruit drinks)
Carbohydrate needs:
- If consuming a sports drink*, 4-8 ounces sport drink every 15-20 minutes
- If exercise is longer than an hour
-after the first 30 minutes, 16-40 ounces sports drink/hour.
-if consuming solid food, 7-15 grams carbohydrate every 15-20 minutes or 30-60 grams
carbohydrate/hour
- Maximum amount of carbohydrate appears to be in the
range of 60-75 grams/hour (1.0-1.5 grams/minute)
*Note: During exercise lasting less than an hour
there is little evidence of physical performance differences between consuming a sports
food and plain water.
AFTER EXERCISE
Fluid needs:
- 1 pint water/pound body weight lost
- Drink at least 8 to 16 oz of fluid after exercise.
Carbohydrate needs:
- 40-60 grams ASAP or within the first 30 minutes
after exercise, and at 2 hour intervals up to 4 hours after exercise
- or 1.5 grams carbohydrate/kilogram body weight
within the first 30 minutes after exercise, and at 2 hour intervals up to 4 hours after
exercise
If weight is less than 60 kg then 60 grams will be
at the maximum end of range
If weight is greater than 60 kg then 60 grams will
be at the minimum end of range
- Maximum 1.5/kg body weight at 2 hour intervals up to
4 hours after exercise
NOTE: 1 kg (kilogram) body weight = 2.2 pounds
If solid food is hard to obtain or sounds too filling
after exercise sports food can be
extremely helpful. They allow you to consume large amounts of carbohydrate without
providing much bulk. Sports foods such as
High-Carbohydrate Energy drinks, Sports Bars, Sport Shakes and Energy Gels can be consumed
immediately after exercise and 1 hour intervals to deliver 1 gram carbohydrate/kilogram
body weight.
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