FQ3: How can nutrition and recovery strategies affect performance? Flashcards
What should be considered in a pre-performance diet?
- Carbohydrate loading
- Hydration
What is carbohydrate loading and its use in pre-performance meals, specific to endurance athletes?
Increase carbohydrate consumption in the days leading up to performance → increases glycogen stores in muscle and liver = increased stores for sustaining performance
consumed 3-4 hours before
tapering (reduce training)
What hydration requirements should athletes follow pre-performance?
2-3L day before
500mL hours leading up to
230mL 30 mins before
What factors should be considered for nutrition during performance?
- Fluid replacement
- Sports drinks
- Carbohydrate/glycogen stores
How should fluids be replaced during performance?
Frequent sips 200-300mL every 15 mins
Need to prevent dehydration from increased temperature and humidity
What are the benefits of sports drinks during performance?
only beneficial if lasting more than 30-60 mins
delays onset of fatigue + replaces electrolytes lost in sweat
How should glycogen stores be replenished during performance?
Consuming sports gels, bars, fruits during performances more than 60 mins is essential for sustained performance
What factors should be considered in post-performance nutrition?
- Hydration
- Glycogen stores
- Protein replacement
How should fluids be replaced post-performance?
in 1st hour after
How should glycogen stores be replaced post-performance?
High GI foods for immediate replacement
More complex carbs within 1-2 hours
Continue to refuel 24-48 hours after
How should protein be replaced post-performance?
1-2 hours after to repair and grow muscles
especially for resistance training
Compare 2 sports and their nutritional requirements.
Pre-performance:
NRL requires intense carb loading + hydration
Gymnastics requires hydration
During performance:
NRL requires maintained blood sugar levels through sports drinks
Gymnastics as a shorter duration event should not worry about hydration unless competing throughout the day (need to consider timing)
Post-performance:
NRL requires large amounts of protein and carbs and fluids to speed up recovery from tackling
Gymnastics needs protein to repair damaged tissue, but not so much carbs or fluids as the event is short bursts of energy (ATP/PC)
What are the things athletes commonly supplement?
- Vitamins/minerals
- Protein
- Caffeine
- Creatine
What are the advantages of supplementing vitamins and minerals?
ADVANTAGES:
1. Some athletes feel strenuous exercise produces stress → antioxidant vitamins (vitamin C, E, beta-carotene); INSTEAD EAT FRUITS AND VEGETABLES
What are the disadvantages of supplementing vitamins and minerals?
DISADVANTAGES:
1. Intake of excessive quantities of vitamins (super-supplements, megadoses) → unnecessary + potentially dangerous = headaches, loss of appetite, fatigue
2. Capsules are wasteful and expensive
3. Super-supplementation does not improve performance