Because movement is so fluid, we rarely think about it in a “geometrical” way. Looking at movement from this perspective, there are three planes of motion; frontal, sagittal, and transverse. These planes divide the body into a top and bottom (transverse), a right and left (sagittal), and finally a front and back (frontal). Although we only describe three planes, motion happens in any combination of these three planes. In order to maximize the body’s ability to perform efficiently and safely in all three planes of motion, I prefer to train my athletes using dumbells, kettle bells, and olympic lifts. These training tools and systems ensure we are addressing all planes of motion simply by working out. We do not (and cannot) develop dynamic stabilization if we train strictly with machines; honestly I avoid training with machines about 90% of the time. Athletes, particularly power athletes are constantly stopping and changing direction, and if they have difficulty dynamically stabilizing, changing direction will be significantly slower. Having fluid motion in the three primary planes of motion allows these and all other types of athletes to efficiently change direction while maintaining momentum and speed throughout the transition.