Interval work is easy to attempt and easy to do badly. This level establishes what a genuine interval is, so that the hard part lands where it should instead of spreading into a vague scramble.
Finish this level and you can run a twenty minute interval workout that is genuinely hard and genuinely over, and tell the difference between working intensely and simply rushing through movements.
What You'll Learn
- Work and rest ratios, choosing exercises you can perform while breathing hard, keeping form when tired, judging effort without a heart rate monitor, warming up first, and how many interval days a week is sensible