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Conventional Chairs
Using lumbar support alone misses the keystone . The mobile spine collapses above the support unbalancing the body and compressing the lower back and neck.
The muscles have to work hard to hold the unbalanced body upright against gravity. Over time they get tight and fatigued, causing stiffness and pain.
The Ephgrave Chair
The moveable back cushion can be positioned to fully support the keystone of each user, lifting it up and forwards to rebalance the body and reduce strain on joints and muscles. Good posture and flexibility are maintained.
The chair does the work for you so your body can relax.
