Summary: With the on guard exercise, you have to be careful not to damage your rotator cuff. Learn how to do the on guard with free weights in this exercise video from a Pilates instructor.
"I call this exercise on guard and from there we are going to lawnmower. These are names I have made up, nothing from Joseph. The first one looks like this, you bring your weight right into the center and keeping your shoulders locked down take a nice inhale, exhale close the rib cage and swing the arm out, swing it out. This is just a preparation for the exercise that we are going to do. Remember do not bring the arm way up because you don't want to hurt your rotator cuff. From there after you've kind of gotten the swing of the motion go ahead and inhale, exhale out. Inhale back in, exhale out. Inhale and exhale. From here you can go to lawnmower by changing your feet, one pointed over and bending over. It is like pulling the cord on a gas powered motor so you are going to inhale and exhale, pull and twist and exhale, pull and twist. One more time, exhale, pull and twist and reach up."