The low-high chop is a great whole-body exercise. You must work to keep the core stable as you work your legs in the squat and your arms in the lift. It simulates putting away groceries and picking up kids.
The low-high chop can be performed using a cable machine or an exercise band.
Stand with your side to the cable machine. Start in the squat position, holding the handle of the cable in both hands at about knee height on the side of your knee closest to the cable machine, arms straight. Keep your torso in the neutral position, i.e. your back should not be rounded, your shoulders should be relaxed and down away from your ears. As you rise from the squat, rotate your torso and swing your arms across the front of your body so that your hands end up above and to the opposite of your head. Keep your arms straight and your shoulders relaxed. Reverse the motion by swinging your arms back across your body and down while squatting to the starting point. Move in a slow and controlled manner.
Repeat all repetitions on one side then switch to the other side.
Attach an exercise band to a low object or to the bottom hinge of a door. When using a door always stand inside the door so that the door would open away from you. This is the safest position when using door hinges as anchor points for exercise bands. Be sure the door latches behind you.
Stand with your side toward the anchor point. Move as described above.