Your spine has 6 movement directions. Sitting at a desk all day can lock you into just 1. Back stiffness isn't always a strength problem. It's often a rotation problem. Your thoracic spine is designed to rotate, side bend, extend and flex. But if you sit in flexion all day, it can lose access to five of those six directions, and the curves start to exaggerate. ㅤ Self-test: sit tall, arms crossed, rotate each way. Uneven? Start here. ㅤ 1. Forearm Plank with Thoracic Rotation, 3x6 each side (2s hold at top) 2. Half-Kneeling Thoracic Spine Mobility, 3x8 each side ㅤ Drop BASICS for the Grade 1 Mobility programme. Four weeks, press play, copy me, any level. ㅤ #Elastaboy #Reboryn #ThoracicMobility #BackPain #SpineRotation