Kori's doctor says her muscular strength and endurance are excellent, but he worries about kori's cardiovascular health. kori enjoys weightlifting, softball, basketball, and bowling. increasing frequency of which activity will best improve kori's cardiovascular endurance?

I would say that increasing frequency of basketball will best improve Kori's cardiovascular endurance, given that basketball is the most active sport among these activities, where you have to move the most, use your arms and legs, and the heart pumps the largest quantities of blood during such activities. 

It has been an olympic event since 1972

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