202e55b9_Major_Muscle_Groups__Major_Muscle_Group
[Location] Low back [Functional Role] Postural alignment [Exercise to Strengthen] back extensions [Sample Stretch] "Cat Stretch" - Kneel on all fours, round back like a cat. Sit on chair with feet shoulder distance apart. Bend over and place shoulders between your knees [Notes] The erector spinae is sometimes called the "low back" muscle, although it runs up your entire back. [Major Muscle Group] 
Erector Spinae
Major Muscle Groups
Major Muscle Group