Jenny doing Core Dog on the ridge above Lake Ann along the Maple Pass Trail in the North Cascades, Washington State. This version of the Downward Facing Dog Pose (Adho Mukha Svanasana) that helps develop core strength and stability. By keeping her ears in line with her arms, engaging her upper arms back into her shoulder sockets, and not pushing her shoulders and chest towards the ground, she avoids stressing her shoulder ligaments or rotator cuff muscles.