Question

1. how does physical activity benefit cardiovascular health in older adults?

○ decreases oxygen levels in the blood
○ increases blood pressure
○ improving cardiovascular efficiency
○ reduces heart rate variability

1. in individuals who have a parkinsons disease diagnosis, what is the benefit of exercise?

○ exercise improves strength, balance, and mobility
○ exercise increases the risk of anxiety and depression
○ exercise worsens sleep and increases insomnia symptoms
○ exercise impairs motor symptoms and worsens tremors

1. which aging process impairs the respiratory system and oxygenation?

○ decreased lung tissue elasticity
○ increased number of alveoli
○ increased cough receptor sensitivity
○ increased oxygen retention

Explanation:

Question 13

• "Decreases oxygen levels in the blood" is incorrect because physical activity increases oxygen delivery.
• "Increases blood pressure" is incorrect as regular physical activity can help manage blood pressure, not increase it in a harmful way for cardiovascular health.
• "Improving cardiovascular efficiency" is correct because physical activity makes the heart and blood vessels work more efficiently, improving circulation and cardiovascular function.
• "Reduces heart rate variability" is incorrect; healthy physical activity can actually improve heart rate variability.

• "Exercise improves strength, balance, and mobility" is correct. Exercise is known to help manage symptoms of Parkinson's by improving motor function, strength, balance, and mobility.
• "Exercise increases the risk of anxiety and depression" is incorrect; exercise can reduce anxiety and depression.
• "Exercise worsens sleep and increases insomnia symptoms" is incorrect; exercise can improve sleep quality.
• "Exercise impairs motor symptoms and worsens tremors" is incorrect; exercise helps improve motor symptoms and can reduce tremors.

• "Decreased lung tissue elasticity" is correct. With aging, lung tissue loses elasticity, which impairs the respiratory system's ability to expand and contract, reducing oxygenation.
• "Increased number of alveoli" is incorrect; the number of alveoli decreases or their function is impaired with aging.
• "Increased cough receptor sensitivity" is incorrect; cough receptor sensitivity often decreases with aging.
• "Increased oxygen retention" is incorrect; oxygen retention is not typically increased with aging; in fact, oxygen uptake and utilization can be impaired.

Answer:

C. Improving cardiovascular efficiency (assuming the options are labeled A, B, C, D with C being "Improving cardiovascular efficiency")

Question 14