Theorem Sheffield

From the manufacturer

One of two five-motor chairs in the Theorem range, alongside the Winslow. Five motors give fully independent control of back recline, leg raise, lumbar support and headrest — the most granular positioning available without moving to a custom seating system. The clinically notable function is **zero-gravity tilt-in-space**, which Theorem states can assist with fluid retention and circulation concerns. Tilt-in-space differs from recline in that the seat-to-back angle is preserved while the whole seating unit rotates, so the user's posture is maintained rather than opened up as they tilt — the reason tilt is preferred over recline where shear at the back and sacrum is a concern, or where a set hip angle needs to be held. Combined with leg elevation above the heart, this is the position used to assist venous return in dependent oedema. Memory preset positioning stores set positions and returns to them on one press, so a clinically determined position can be reproduced rather than re-found each time. Also included: seat and backrest heating, genuine shiatsu roller massage, and an integrated wireless phone charger. One standard size. One colourway: Canyon Walnut.

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