Lower the arms down to the starting position. Repeat 10 times. Stand with your feet hips-distance apart, holding one dumbbell ...

Walk your hands forward to a high plank position with your ... There are several arm muscles in your upper and lower arm that help you perform movements like bending, extending, and waving.

Try to avoid using your arms to pull yourself up and forward—this movement should come from the abs! Lower back a few inches and then forward (i.e. pulsing), keeping upper back, shoulders ...