This works the muscles in the back as well as the abdominals, when rowing focus on trying to pull your shoulder blades together.
Lying on the stomach with hands on the floor parallel to shoulders, use the back muscles to lift the head and upper body. For a greater challenged, extend the arms in front, similar to a “superman” pose.
Bird Dog Pose
This is another back exercise that also works the abs. Begin on all fours, in Cat Pose. Extend one leg behind and the opposite arm in front. The idea of the exercise is to maintain equal balance and not to let the body shift. All weight must be equally distributed between the knee and the hand that is on the floor.