Question

what is mean by cardio workout? ​

Answer 1

Answer:

it is the work out to keep heart healthy

Explanation:

Answer 2

Cardio exercise simply means that you're doing a rhythmic activity that raises your heart rate into your target heart rate zone, the zone where you'll burn the most fat and calories. Even bouts (or episodes) as short as 10 minutes count towards your weekly cardio exercise minutes.