When you think of a split squat, you probably immediately think of training for the legs. However, besides the fact that this exercise has a function in the leg muscles, it does a lot more than that. The asymmetric movement mobilises the hip and pelvis. In addition, this, together with the additional demand in stability, ensures activation of the core. The split squat is therefore very suitable for relieving stiffness in the lower back. Of course, here again you should ensure a correct posture and controlled movement.