What is the main fuel source used during high-intensity exercise?
Carbohydrates
What nutrient should endurance athletes prioritize for glycogen storage?
Carbohydrates
What is the primary function of sweat during exercise?
Cooling the body
What is the recommended protein intake for strength athletes post-workout?
15-25 grams
Which energy system supports prolonged, low intensity activity?
Aerobic system
Which mineral is critical for oxygen transport in the blood?
Iron
What is a symptom of mild dehydration?
Increased heart rate
What type of carbohydrates should endurance athletes consume during exercise?
Simple, easily digestible
What is VO2 max a measure of?
Maximum oxygen uptake
What is carbohydrate loading used for?
Maximizing glycogen stores
What force moves water through membranes in the body?
Osmotic pressure
How does creatine benefit strength athletes?
Increases energy in short bursts of activity
What adaptation occurs in muscles during endurance training?
Increased mitochondria density
Which macronutrient aids muscle repair post-exercise?
Protein
Which electrolyte is lost most in sweat?
Sodium
What is the ideal nutrient ratio for post-exercise recovery?
4:1 carb to protein
What is the primary cause of muscle fatigue during prolonged exercise?
Depletion of glycogen stores
What should be the primary focus of pre-exercise meals?
Energy and easy digestion
How is sweat rate typically measured?
tracking pre and post-exercise body weight
Why should athletes avoid high-fat meals before training?
Difficult to digest and slower energy release