10A: Aging

Question 1

What element of the CV system decrease with aging?

Answer 1

• Vascular elasticity
• Adrenergic response to exercise
• Rate of calcium pump
• Cardiac muscle twitch force
• Rate of ATP activity
• Lean body mass

Question 2

What are three additional CV changes with age?

Answer 2

1. Left ventricular hypertrophy
2. Prolonged time to peak force of cardiac muscle
3. Diastolic dysfunction

Question 3

What do CV changes with aging lead to?

Answer 3

• Decreased heart force
• Disturbances to cardiac cycle
• Peripheral changes

Question 4

What are four normal pulmonary changes with aging?

Answer 4

1. Decreased peripheral chemoreceptor sensitivity
2. Decreased thoracic cage mobility and lung tissue compliance
3. Arthritic changes
4. Increased O2 demand for respiratory muscles

Question 5

What is the result of normal changes due to aging on the pulmonary system?

Answer 5

Increased V/Q mismatch

Question 6

What are signs and symptoms of pulmonary changes due to aging?

Answer 6

• SOB and DOE
• Decreased endurance
• Rib and thoracic pain
• Postural changes

Question 7

How do you treat respiratory pathology due to aging?

Answer 7

1. Breathing strategies
2. Thoracic mobility
3. Functional endurance
4. Energy conservation
5. Supplemental O2