ABROFIT
AI FITNESS OS

Sprint Interval

Cardio & Conditioning · full · advanced

Sprint Interval — start positionStart
Sprint Interval — end positionFinish
similar: Wind Sprints

How to do it

After a thorough warm-up with build-up strides, run flat out for the prescribed distance driving the knees forward and the arms hard, then walk the full recovery before the next rep.

Muscles worked

Primary: full · Also works: hamstrings, glutes, quads, calves

Equipment

No equipment

Common mistakes

  • Sprinting cold — you need at least ten minutes of jogging and three build-up strides first
  • Cutting the recovery short, which turns a speed session into a mediocre tempo run
  • Reaching the foot out in front of the body instead of striking under the hips

Variations

  • 6 x 60m with three minutes walk recovery
  • 10 x 100m with 90 seconds recovery
  • Flying sprints with a 20m run-in

Can't do this one? Swap it for

Take care: ABROFIT automatically removes this movement for anyone who has flagged a knee or ankle problem. If that's you, use one of the swaps above and speak to a physio before loading it.

Related exercises

Not sure how heavy to go on this?

ABROFIT reads your logged sets and tells you the working weight for today — it adds load when you earn it, backs off when you stall, and eases it on a bad night's sleep.

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