DOES THE BACKREST RECLINE ON THE ZACKBACK Posture Chair?
No. A reclining backrest distorts one’s sitting posture, especially the proper upright relationship of the head, neck, and upper back. A healthy sitting posture involves proper activation of the abdominal and back muscles. Sitting in a reclined posture has the opposite effect: a relaxation of the trunk musculature. An individual sitting in a reclined posture has the same trunk muscle activity as an unconscious person. Reclining is not a natural sitting posture. An individual sits in a reclined position for one of two reasons: 1) The design of the chair forces one to sit with the upper trunk displaced behind the hips or 2) Due to the fatigue from sitting in an incorrect upright posture.
