The Backjoy introduces a different approach to seat ergonomics as it cradles the pelvis to sit in an upright position. The two traditional methods of offering back support include maintaining the lumbar lordosis with a cushion or sitting on an angled surface to wedge the pelvis in an upright position. The idea of cradling the pelvis into a vertical position is an appealing approach as it creates a better base for the lumbar spine to sit on. I haven’t tried the Backjoy but a patient with sacroiliac instability swears by it.
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