How long a person exercises. the number of minutes of physical activity at one time is called?

20-60 minutes should a person exercise every day if we are talking about cardio work outs. A person should do this more than 3 times a week to improve their cardiovascular endurance. In your question the number of minutes of physical activity at one time is muscular endurance because you are referring to how many reps or sets of work out. Hope this helps

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