Be firm but calm...Move from your 'core'. Breathe from your 'core'. Open your 'heart' from your 'core'. Natural joint movements are coupled together and are initiated from the 'core', i.e. when you move one joint it affects other joints, and each movement should start from your 'core'. Hence, when you are doing complex postures such as the 'legs behind the head' variations shown here it is important to acknowledge this and make your movements with this in mind. The postures I am demonstrating here are lots of fun but I have seen many people injure themselves especially in their sterno-clavicular joints (between your breast bone and collar bones), the sterno-costal joint (between the breast bone and the ribs) and in the lower back. Firstly it is important to appreciate the coupled movements between your spine, chest, shoulders and neck. For example, when performing the 'Sleeping tortoise posture' (Supta kurmasana), turning your shoulders inwards to get your arms bound behind your back causes the shoulder blades to go forward (protract), which causes first your upper back and chest to bend forwards, then your lower back to bend forward (spinal flexion). Pressing your hands into the floor to lift the body into the air and trying to raise your head causes the spine to try to bend backwards, your chest to open, your shoulders to move backwards (retract) and the your shoulders to want to try to turn out (externally rotate). Secondly, to practice these postures safely all movements and attempted movements should be initiated from the ‘core'. You can think of the ‘core’ as the centre point between the navel, the pelvic floor, the L5, the top of the hips and the diaphragm. Therefore, when you coming into the 'Sleeping tortoise posture' (Supta kurmasana), the ‘core' (think 'navel') should move forwards and downwards (towards the pubic bone) and lead the spine into flexion (forward bending), which should then lead the shoulder blades to move forwards (protraction) then turn the shoulders inwards (internal rotation). #corestrength #spinalmovements #backpain #yogasynergy #yoganatomy #yogaphysiology (at Yoga Weyr)