Abstract: An exercise machine is used to train the low back core musculature and lumbopelvic complex. The exercise machine can also be used to provide stability to the lumbar spinal column. The exercise machine includes a stationary bench substantially parallel to the floor and a rotating bench that is capable of rotating at an angle ? about an axis, wherein the axis is located between the stationary bench and the rotating bench. A resistance means is used to adjust the amount of force required to move a resistance bar away from the rotating bench, while performing at least one of: a plank, a side plank, a bird-dog, a superman, a lumbar extension, a glute bridge, a single leg raise, a dual-leg raise, a bent leg raise, or a resisted push-up.