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1. which of the following is a relevant goal for shawn, who would like to increase her cardiorespiratory fitness?

a. lift heavy weights twice a week
b. sleep 10 hours every night
c. go on a bike ride three times a week
d. eat more food at night.
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Explanation:

To increase cardiorespiratory fitness, activities that improve heart and lung function (aerobic exercises) are relevant.

• Option A: Lifting heavy weights is strength training, not focused on cardiorespiratory fitness.
• Option B: Sleeping 10 hours is about rest, not directly improving cardiorespiratory fitness.
• Option C: Bike riding is an aerobic exercise that can enhance cardiorespiratory fitness when done regularly (three times a week here).
• Option D: Eating more at night relates to diet, not cardiorespiratory fitness improvement.

Answer:

C. Go on a bike ride three times a week.