I had someone recommend working on my arms by grabbing the sides of the seat of a chair behind me, balancing on my heals and lifting and lowering my body in front of the chair (until my elbow are at 90 degrees).
I have done this a few times, but I have a feeling I am increasing my chances of tearing a rotator cuff or something (it just doesn't feel like a natural movement).
Any thoughts/advice?
I have done this a few times, but I have a feeling I am increasing my chances of tearing a rotator cuff or something (it just doesn't feel like a natural movement).
Any thoughts/advice?