What is a set? what is a repetition? how do sets and repetitions relate to one another in the context of a workout?

A set is a group of repetitions. Sets and repetitions are common in strength-building exercises. For example, you might do one set of 10 push-ups: there are 10 repetitions in the set. If you do a second set of push-ups, you will have done 20 push-ups in all. In this case, two sets represent 20 repetitions.

which ever one is showing doing the same exercise in time intervals such as 30 seconds or a minute several times.

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