[06] Exercise Physiology Flashcards
What happens to heart rate during exercise?
It increases
Why does heart rate increase during exercise?
To supply more oxygen and nutrients to working muscles
What is “VO2 max”?
The maximum amount of oxygen a person can use during intense exercise
What happens to the respiratory system during exercise?
Breathing rate increases
Why does breathing rate increase during exercise?
To allow more oxygen to enter the body and more carbon dioxide to be expelled
What is “Lactic Acid”?
A byproduct of anaerobic metabolism
When is lactic acid produced in muscles?
When they are working hard and not getting enough oxygen
What is “Anaerobic Metabolism”?
The creation of energy through the combustion of carbohydrates in the absence of oxygen
What is “Aerobic Metabolism”?
The creation of energy through the combustion of carbohydrates, amino acids and fats in the presence of oxygen
What happens to muscle strength and endurance with regular exercise?
They increase
How does exercise affect bone density?
Regular weight-bearing exercise can increase bone density
What is the “FITT Principle”?
A guideline for designing an effective exercise regimen:
- Frequency
- Intensity
- Time
- Type
What does “Frequency” mean in the FITT principle?
How often a person should exercise
What does “Intensity” mean in the FITT principle?
How hard a person should exercise
What does “Time” mean in the FITT principle?
The length of each exercise session
