2) Good mornings.

Another exercise solely dedicated for the lower back (spinal erectors). The subject stands with a barbell on his/her shoulders. Feet at a few inches distance of one another. He/she bends forward solely using the muscles of the lower back (legs stiff, upper body stiff) until the torso closes a 90 degree angle with the legs. (it is parallel to the floor) Then he/she slowly bends back.