The Ladder Barrel
The Pilates Ladder Barrel helps isolate deep postural muscles and challenges the body on all planes of movement. For example, one exercise has you sitting on the barrel facing the ladder with your feet secured in the rungs, then you arch back over the barrel with your vertebrae following its contour and activate the core abdominals to return to the starting position in a controlled manner. Mental focus is key to executing this safely and effectively.
Other exercises have you facing the other way, with your belly on the barrel, giving you a supported spinal stretch that helps to release tension.