90-90 Position
Maintaining lower ribcage position, abdominal tension, and inhaling from that tension often reduces cramping. In a 90-90 supine position, the hips and knees are bent to 90 degrees. Adding a tuck in 90-90 orients many posterior-chain tissue…
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Maintaining lower ribcage position, abdominal tension, and inhaling from that tension often reduces cramping. In a 90-90 supine position, the hips and knees are bent to 90 degrees. Adding a tuck in 90-90 orients many posterior-chain tissues eccentrically. If lower rib position and zone of apposition are not maintained in 90-90, back extensors may remain the main breathing muscles. Lumbar or thoracic cramping can arise when posterior tissues are lengthened but still asked to contract for breathing support.