Systems and methods for providing ergonomic exercise chairs

A chair for supporting a user, said chair comprising:

• a seat;
• a flexible chair spine that provides flexibility in at least two axes of motion of said user due to its material composition;
• a lower back support surface that is connected to said chair spine at a level higher than a level of said seat and is adjacent to a portion of the user's lumbar spine;
• a shoulder support surface that is connected to the flexible chair spine at a level higher than a level of said seat and is adjacent to a portion of the user's thoracic spine;
• and
• said seat is connected to said flexible chair spine;
• said seat comprising an upper surface that comprises gaps in support provided to said user, wherein said gaps in support include gaps in support beneath said user's spine and beneath said user's ischial tuberosities, wherein said upper surface of said seat that includes said gaps that supports said user slopes downwards from said flexible chair spine to a forward portion of the seat;
• wherein said lower back support surface is adjacent to said seat and engages with the user to push a user's pelvis forward from said flexible chair spine on said upper surface.

A chair for supporting a user, said chair comprising:

• a seat;
• and
• a back support connected to said seat, said back support comprising:
• a chair spine that is flexible at least at a lower back pad and at a shoulder back pad due to its material composition and is shaped to adapt to a curvature of said user's spine;
• said lower back pad that is connected to a bottom portion of said chair spine;
• and
• said shoulder back pad that is connected to a portion of said chair spine that is higher than said connection to said lower back pad;
• wherein said chair spine is capable of flexing in at least two axes of motion of said user in response to force from said user against each of said back pads.

A chair for supporting a user, said chair comprising:

• a seat having an upper surface that comprises gaps in support provided at said upper surface to said user, wherein said gaps in support are adapted to be beneath said user's spine and ischial tuberosities when said user is seated in said chair with said user's back resting on a back support of said chair, wherein said upper surface of said seat that includes said gaps that supports said user slopes downwards from said back support to a forward portion of the seat;
• said back support comprising:
• a chair spine that is flexible at least at a lower back support surface and at a shoulder support surface in at least two axes of motion of said user due to its material composition and is connected to said seat, said chair spine configured to bend to a curvature of said user's spine when said user is seated in said chair, said flexible chair spine is further configured such that said user can rotate said back support by rotating said user's upper body against said back support when said user is seated in said chair,
• said lower back support surface that is connected to a bottom portion of said chair spine, wherein said lower back support surface engages with the user to push a user's pelvis forward from said chair spine on said upper surface of said seat;
• said shoulder support surface that is connected to said chair spine at a level higher than said connection of said lower back support surface;
• and
• arm rests, wherein said arm rests are adapted to be movable downwards against an upward resistive force.