Stand in fighting stance with feet staggered, left (or nondominant) foot forward and fists by chin holding weights. Hinge from waist to bend torso toward right, bending knees and squeezing right elbow to thigh (as if doing a side crunch). Switch sides; repeat. That’s 1 rep. Do 20 reps.
Then, keeping torso upright, drop into a low squat, immediately shifting your weight and torso backward (over right leg) as you dip. Rise up to return to fighting stance, then immediately squat and shift forward (over left leg) as you dip. That’s 1 rep. Continue alternating for 20 reps.