(Executing a mix of average and vigorous activity is also all right, provided that you unfold it out above at the very least two days during the 7 days.) Interval training is training with periods of rest planned in the session. An illustration of interval training is completing 10x30m sprints https://sportsswimming07406.total-blog.com/not-known-factual-statements-about-sports-competition-53460706