Our lower back is not one of our strongest body parts because we often forget to stretch it. Because of this several people have lower back pain. But if you want to avoid this and strengthen your lower back here are a few exercises you should include in your workout routine. Celebrity fitness trainer Samir Jaura who was behind Farhan Akhtar s Bhaag Milkha Bhaag physique recommends these exercises. Plank Get down on the floor in prone position (chest down back up) and then use your forearms and toes to support your weight. Your arms should be below your shoulders.