Chapter 12 - Nutrition for Performance And Recovery Flashcards
What should occur nutritionally immediately after an event of more than 90 minutes
Hi - Gi foods to replenish glycogen stores
What should occur nutritionally 1-2 hours post event
Post event meal. Combine carbs with protein
Considerations when Carb loading.
Eat more carbs (7-10g kg/BM) Decrease fat and fibre Increase water uptake Taper off exercise Occurs 3-4 days prior to event
Common mistakes when carb loading.
Athlete may feel bloated and gain weight
Athlete may think of it as an excuse to eat anything.
Forget to taper
Eat high fat/fibre foods
What are body glycogen stores before and after carb loading?
Before: 100-120mmol/kg
After: 150-200mmol/kg
What food should be consumed 3-4 hours prior to an event?
Give an example
A low GI meal containing carbs.
Eg.) bread roll with lean meat filling + banana + water
What food should be consumed 1-2 hours prior to an event?
Give an example
A moderate GI snack
Eg.) fruit or liquid meal supplement,
What food should be consumed within 1 hour of the event?
Give examples.
High Gi, sugary foods
Eg.) Carb gel, jelly lollies
Hydration requirements: 1 hour before: 15 minutes before: During: Post:
1 hour before: 500ml
15 minutes before: 200ml
During: 200 ml every 15 minutes
Post: 150% of weight loss
State the percentage of the RDI for the following food fuels. Carbohydrates
Fats (triglycerides)
Protein
Carbohydrates: 55-60%
Fats (triglycerides); 25-30%
Protein: 10-15%
State the gross energy (kilocalories per gram) of the following food fuels:CarbohydratesFats (triglycerides)Protein
Carbohydrates: 4
Fats (triglycerides): 9
Protein: 4
How much grams of glycogen are stored as Blood glucose, liver glycogen and muscle glycogen?
BG LG MG TOTAL Grams: 3g. 100g. 300G 400g 1g= 16.5 kj
Total energy intake per day kcal
1200-1500 kcal
1 Cal= ? Kj
4.2 Kj
Reccomended daily intake for an athlete of carbs fats and proteins
Carb 70%
Fat 15-25%
Protein 10-15%
Glycogen intake per day for low intensity training program for a duration of 60-90 minutes
5-7g per kg BM
Glycogen intake per day for training programs 90-120 + minutes per day
7-10g per kg BM
Glycogen intake per day for extreme programs of 6-8 hours per day
10-12+g per kg BM
Daily carbohydrate requirements when Carb loading
7-10g per kg BM
Glycogen intake per day for average person
3-5g per kg BM
How much carbs is recommended in pre event meal 1-4 hour pre event.
1-4g per BM
For rapid recovery what level of Carbohydrate intake is recommended.
1-1.2g per kg Bm each hour for 4 hours after exercise until levels are replenished.
Levels of Gi considered high
79-100
Levels of Gi considered low.
0-55
What food types must you cut down on when carb loading?
decrease fats decrease fibre
what are the two vital aspects of Carb loading?
Increase carb intake
taper training
Ideally how many days before the event must carb loading occur?
3-4 days
What type of lipoprotein is better for the body? High-density or Low-density?Why?
High DensityBecause they remove cholesterol from the arterial wall and deliver it to the liver for breakdown, while Low density deposit cholesterol in the arteries.
What are High density lipoproteins (HDL) made up of?
Protein 50%
Lipids 20%
Cholesterol 20%
What are low density lipoproteins (LDL) made up of?
Cholesterol 60-80%
+alcohol, lipids, CHO
How can you lower LDL and increase HDL?
regular aerobic exercise and reduce smoking?
Protein intake for average person or someone undergoing general training in g per kg/BM?
1g per kg/BM
Protein intake for endurance training in g per kg/BM?
1.2-1.6g per kg/BM
Protein intake for resistance training in g per kg/BM?
1.2-1.7g per kg/BM
Why is carbs combined with protein ideal for a post exercise snack?
Carbs + protein triggers the production of insulin which increases the uptake of amino acids in the muscle.
Non-nutritional drawbacks of high protein diet.
Increased calcium excretion in urine (weaker bones)
Accelerate pre existing kidney disease
Excess is converted to fat
Expensive (supplements)
Nutritional drawbacks of high protein diet.
Increased fat intake from high protein animal foods
Displaces nutrients from other food sources
Daily intake of protein for adolescents:
2 g per kg/BM
Daily protein intake for sedentary individual:
.8 g per kg/BM