5 X 3 MINUTES

- Sprint uphill, turn around at the top and jog back down. - Once back at the bottom, immediately turn around and sprint back up. Keep this going for 3 minutes.

- It doesn’t matter how long the rest is between each of the 3-minute sets, just focus on maintaining intensity for each. - Once you’ve done your last rep, you should feel like you’ve got just enough strength for a final effort.