05/02/2026
Active sitting with weight acceptance, as taught in CoreFirst Strategies by the Institute of Physical Art begins with organizing the body into an upright, stacked posture—with the ribcage aligned over the pelvis.
From this position, weight is directed downward through the trunk into the legs, creating a stable base of support. Instead of consciously bracing the core, the deep core system activates automatically in response to this load.
As weight is accepted through the lower extremities, the lumbar spine can relax, reducing unnecessary tension while maintaining stability through efficient load transfer. With the pelvis grounded and the legs doing their job, the spine can stack more naturally—creating a posture that feels supported, adaptable, and not rigid.
This approach promotes better balance, more efficient movement, and functional alignment through reflexive muscle activation, rather than excessive effort.
💬 Sitting all day but still feeling tight or fatigued? DM us or contact our clinic to schedule your FREE 15-minute discovery call and learn how to sit with better support and less strain.