Exercise and Stress

Question 1

What is aerobic exercise, and what are its benefits?

Answer 1

-does not require more oxygen than can be taken in
-sustained activity using major muscle groups
-strengthens the cardiovascular system, increases strength & stamina
-examples: jogging, biking, rope jumping
-recommended: At least 3 times a week for benefits

Question 2

What is anaerobic exercise?

Answer 2

-high intensity to trigger anaerobic metabolism (requires more oxygen than can be taken in)
-short duration: seconds up to 2 minutes
-examples include sprinting, weight lifting

Question 3

What are the key components of physical fitness?

Answer 3

-muscle strength and endurance
-cardio respiratory endurance
-flexibility
-body composition
-agility

Question 4

What are the physical benefits of exercise?

Answer 4

1. improves function and elasticity of lungs
2. delays the onset of degenerative aging
3. increases production of red blood cells in bone marrow
4. strengthens heart muscle and improves circulation
5. lower resting pulse rate
6. burns calories and improves food absorption
7. improves muscle tone and endurance
8. reduces LDL and serum cholesterol
   9.increases HDL cholesterol

Question 5

What is the relationship between exercise and the stress response?

Answer 5

-the relationship still unclear
-exercise may influence the HPA axis and sympathetic nervous system
-studies show lower cortisol and catecholamine levels in fit individuals.
-exercise may increase endogenous opioid activity, improving mood.