Dynamic Cactus Arms – Scapular Stability Drill This exercise is designed to build dynamic shoulder stability by targeting the scapular muscles — particularly the muscles that control the shoulder blades (scapulae) during movement. It's based on the classic yoga cactus arms posture, with added alignment cues and isometric engagement to increase effectiveness. Key Tips: Keep your scapulae anchored, avoid letting them wing off the wall. Stay in a neutral shoulder position, no excessive internal or external rotation. Focus on activation over range, it’s more about building control than how far you can move. This drill - activates deep stabilisers around the shoulder joint - helps to re-pattern movement and - trains the shoulder blades to move in sync with your arms It’s a powerful way to improve - postural alignment - joint support - functional shoulder mechanics ... all in one simple move.