Mike Melton demonstrates a fitness test: carry two tires at a time from the starting point to a cone and back, as fast as you can. The video shows the setup with four tires and a cone, then walks through exactly how to do it.
The test is, see those 4 tires? See that cone down there? You're gonna put— you're gonna pick them up 2 at a time, carry them down to that cone, back down. 2 tires in each arm. You got to go all the way down to that cone right there and then back. You ready? Of course, do it as fast as you can, for sure.
