Chapter 10 - Nutrition Strategies for Maximizing Performance Flashcards
Precompetition Nutrition
Should be familiar to the athlete
Choose from either high or low glucemic index
Precompetition Nutrition advantages
Enhance glycogen stores and improve exercise time to exhaustion when consumed 3 or more hours before
Precompetition Nutrition timing
Race as early as 7am, athlete should eat small amounts of food 1 to 2 hours before and during competition
General Guidelines for Precompetition
Hydrate several hours before
Eat at least 4h before the competition including approx.
1-4g/kg of carbs
4 hours before competition
1-4g/kg of carbs
0.15-0.25g of protein
2 hours before competition
1g/kg of carb
Prolonged Activity in hot weather
20-30mEq of sodium per liter, 2 to 5 mEq of potassium, and 5% to 10% of carb concentration
1 hour before competition
liquid sources of carbohydrates are preferable
0.5g/kg of carbs
Carbohydrate loading
THree days of a high carbs diet
8-10g/kg
or even 10-12g/kg 36-48hrs
During Event Nutrition
Athletes should consume enough fluid during exercise to prevent water weight losses exceeding 2% of body weight
Increase rate of carbohydrate absorption
Consuming multiple types of carbohydrates, such as sucrose, fructose, glucose or maltodextrin
Intermittent High Intensity Sports
Tennis players
200-400ml fluid per changeover
Post Competition Nutrition
athletes may wait up to 2 hours after finishing a glycogen depleting event before eating carbohydrate
Protein After Training
To help in the breaks down muscle tissue
It increases the rate of glycogen storage if carbs intake is inadequate
helps to decrease some markers of muscle damage
BMR
Basal Metabolic Rate
the largest contributor to total energy expenditure (65-70%)