Ch. 6
cells need to be in constant supply of what?
Nutrients
the intake of what helps the repair and synthesis of muscle
protein
What is euhydration?
euhydration is the body's perfect balance between too much and too little water.
When should an athlete eat a carb-rich meal prior to competition?
3-4 hours prior to competition
what system works for the first 30 seconds of high-intensity activities
APT-PC system
True or false. Pre-exercise meals can correct nutritional deficiencies in the weeks before competition.
False
What is hypothermia?
Hypothermia is when the body loses its ability to produce heat faster than it is losing it
What does "hitting the wall" mean?
When muscle and liver glycogen stores are depleted the athlete experiences incredible fatigue.
what breaks PC into creatine and Pi?
Creatine kinase
what macronutrient has the highest thermic effect of food
protein
What is exertional hyponatremia?
Exertional hyponatremia results from excessive consumption of low-sodium fluids during exercise
What is considered an endurance sport?
An activity lasting longer than 30 minutes
Glucose is converted to pyruvate during what process
glycolysis
which macronutrient digests and absobs quicker which can reduce the feeling of fullness
carbohydrates
What is aldosterone?
is a hormone released by the hypothalamus which increases the kidney's reabsorption of sodium and decreases amount of sodium lost in sweat.
Which energy system generates speed faster?
The Anaerobic system generates ATP at a faster rate also known as aerobic power.
excess carbohydrates, protein, and fat can be converted into fat and stored in what?
Adipocytes
What is fat loading?
when a greater percentage of fat is consumed in the diet, then fat oxidation would be increased during exercise sparing carbohydrate stores.
What is heat stroke?
t occurs when the body can no longer control its temperature: the body's temperature rises rapidly, the sweating mechanism fails, and the body is unable to cool down
True or false, an athlete would benefit from hyperhydration prior to an event?
True