Two platform motion seat

A seat for optimally distributing the weight of an occupant's body borne by the ischial tuberosities and posterior over the seat regardless of an occupant's seating position, the seat comprising:

• a base;
• a pair of seating assemblies, each seating assembly supported by said base;
• at least one motion mechanism that supports each of said pair of seating assemblies independently in a force displacement relationship wherein a downward force on one of said pair of seating assemblies produces at least a proportional downward displacement of said one of said pair of seating assemblies;
• a movement constraining mechanism disposed between each of said pair of seating assemblies and said base for preventing movement of said pair of seating assemblies from interfering with each other while permitting at least one of rocking and vertical displacement of each of said pair of seating assemblies independently.

A seat comprising:

• a base;
• a motion mechanism supported by said base;
• a pair of seating members, each seating member supported by said motion mechanism and enabled to move in at least one of a vertical motion and a rocking motion;
• said motion mechanism supporting said pair of seating members to provide an enlarged ideal sitting area for an occupant's ischial tuberosities.