When one of the world’s fittest people laid down the gauntlet with an unexpectedly accessible workout challenge, I couldn’t ...

“You pick a really heavy exercise, then pair it with ... an established attribute for speedy sprint swimmers. I’ve tried contrast training before, and found it effective.

Depending on what you need to work on for your current fitness level and future training goals, pick swimming with fins or rucking to top off the leg day. The following workouts will add another ...