The anatomical characteristics of the human body cause it to function in a crisscross manner. The arm-and-shoulder mechanism on one side links diagonally through the torso mechanism to the hip-and-leg mechanism on the opposite side.
Think about what you're doing while walking, running, punching, throwing, and batting. Such cross-body linkages are foundational to human functioning and a big part of athletic movement.
One type of cross-body movement involves rotational core exercises, such as weight-plate chops shown here.
For someone who wants to lose fat, Dan can't imagine a more perfect week: Two days of locking down nutrition, two days of lifting, and a total of eight minutes getting the system to burn fat.
The best cue is to keep your shoulder blades back and down. The first few reps show the incorrect position. In the last few reps, the shoulder are back and down.