Exercise chair with spin seat

1. An exercise chair comprising:

a frame having a pair of spaced apart rails and a seat support member extending between the rails;

a seat assembly having a seat member and a bearing assembly, wherein the seat assembly is coupled directly to the seat support member and the seat member is rotatable about a vertical spin axis;

first and second front support members coupled to the frame in laterally spaced apart relation;

first and second rear support members coupled to the frame in laterally spaced part relation, wherein the first and second front support members and the first and second rear support members support the frame above a surface; and

a foot-actuated lever pivotally coupled to the exercise chair and configured to provide resistance when pressed down by a user seated on the seat.

2. The exercise chair of claim 1 , wherein the first and second front support members and the first and second rear support members are removably attached to the frame.

3. The exercise chair of claim 1 , wherein either the first or second rear support member, or both, are pivotally coupled to the foot-actuated lever,

and wherein the first and second rear support members and the foot-actuated lever together define a rear support assembly.

4. The exercise chair of claim 3 , further wherein the rear support assembly has a pivot axle extending between the first and second rear support members,

and wherein the foot-actuated lever has a first end pivotally attached to the pivot axle and a second end attached to a pedal.

5. The exercise chair of claim 3 , further comprising a second foot-actuated lever, wherein the rear support assembly includes a removable fastener configured to secure the first and second foot-actuated levers in a fixed, nonpivoting position relative to the first and second rear support members when the rear support assembly is removed from the frame.

6. The exercise chair of claim 3 , further comprising:

a second foot-actuated lever;

a first spring having a first end attached to the frame and a second end attached to the first foot-actuated lever; and

a second spring having a first end attached to the frame and a second end attached to the second foot-actuated lever.

7. The exercise chair of claim 3 , wherein the rear support assembly is removably attached to the frame and is removable from the frame as an integral unit.

8. The exercise chair of claim 6 , further comprising:

a first spring fastener attached to the first foot-actuated lever; and

a second spring fastener attached to the second foot-actuated lever,

wherein the second end of the first spring is attachable to the first spring fastener at a plurality of positions to vary the resistance resulting from downward movement of the first foot-actuated lever,

and wherein the second end of the second spring is attachable to the second spring fastener at a plurality of positions to vary the resistance resulting from downward movement of the second foot-actuated lever.

9. The exercise chair of claim 8 , further comprising:

third and fourth spring fasteners attached to the frame;

wherein the second end of the first spring is attachable to the third spring fastener and the second end of the second spring is attachable to the fourth spring fastener to place the first and second springs in a stowed position.

10. The exercise chair of claim 6 , further comprising a mechanical fastener,

removably attachable to the first and second foot-actuated levers for causing the first and second foot-actuated levers to pivot together as a unit.

11. The exercise chair of claim 1 , wherein the frame has first and second front receptacles for removably attaching the first and second front support members; and

the frame has first and second rear receptacles for removably attaching the first and second rear support members.

12. The exercise chair of claim 1 , further comprising:

a fastener, removably connected to the frame and the seat for selectively securing the seat in a fixed position relative to the frame.

13. The exercise chair of claim 1 , further comprising:

a handle removably attached to the frame;

or a resistance element including an elongate elastic band having a fastener at a first end for removable attachment to one of the first and second front support members and the first and second rear support elements.

14. The exercise chair of claim 1 , wherein the seat is generally rectangular in shape, and the seat has a length and a width wherein the length is greater than the width.

15. The exercise chair of claim 1 , wherein said first and second front support members and said first and second rear support members are extendable to support the seat at a plurality of heights above the surface.

16. The exercise chair of claim 1 , further comprising a generally vertical seat back removably coupled to the frame.

17. The exercise chair of claim 1 , further comprising a height adjustable seat post for supporting the seat at a plurality of heights above the surface.

18. A kit having component parts capable of being packaged in a disassembled or partially disassembled form and of being assembled into an exercise chair, the kit comprising:

a frame comprising a pair of spaced apart rails and a seat support member extending between the rails, the frame having a seat assembly attached directly to the seat support member, the seat assembly including a seat member and a bearing assembly, wherein the seat member is rotatable about a vertical spin axis;

first and second front support members configured to be removably coupled to the frame;

a rear support assembly including first and second rear support members configured to be removably coupled to the frame; and

a foot-actuated lever pivotally coupled to the exercise chair, the foot-actuated lever configured to provide resistance when pressed down by a user seated on the seat.

19. The kit of claim 18 , further comprising a container for storing the component parts in disassembled or partially disassembled form.