Tough Endurance Workout from Chris Hinshaw and Sara Sigmundsdottir

Time to forge an unstoppable engine.

“This track session got real really quick 🏃🏼‍♀️🌞.”

  • 4 sets
  • 4 x 400 m with 40 seconds rest between reps 
  • 4 min rest between sets

More from Chris:

Chris Hinshaw: How to Build a Bigger Engine for Crossfit

Tenerife Top Training - World Class Facilities and Fitness in The Canary Islands

Pat Vellner, Brenk Fikowski and Emily Abbott Demonstrate CrossFit Stereotypes

About The Author

Editor-In-Chief at BOXROX. I come from a background of rugby and weightlifting. Growing up in the English Lake District, I spent a great deal of time swimming in its stunning lakes and rivers. In 2015 my brothers and I became the first people to swim the 145km length of the River Eden, from source to mouth, in 9 days. We also swam the Corryvreckan whirlpool, the third largest in the world, and Crossfit is a huge part of my training for these events.


Hardest WODs, event photos,
box rumours, nutrition tricks and more!

Never miss a post

Related posts