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A leg exercise device for use with an office chair including a back, a seat, and a seat support. The leg exercise device includes a leg exercise mechanism for use by a user while seated on the office chair to exercise the user's legs, and a rigid connection mechanism extending from the leg exercise

A leg exercise device for use with an office chair including a back, a seat, and a seat support. The leg exercise device includes a leg exercise mechanism for use by a user while seated on the office chair to exercise the user's legs, and a rigid connection mechanism extending from the leg exercise mechanism for detachably and rigidly connecting the leg exercise mechanism to the seat support of the office chair.

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What is claimed is: 1. A leg exercise device for use with an office chair including a back, a seat, a single vertical seat support with a lower portion; and a plurality of laterally extending arms radiating from the lower portion of the single vertical seat support, comprising: a) a leg exercise me

What is claimed is: 1. A leg exercise device for use with an office chair including a back, a seat, a single vertical seat support with a lower portion; and a plurality of laterally extending arms radiating from the lower portion of the single vertical seat support, comprising: a) a leg exercise mechanism for use by a user while seated on the office chair to exercise the users legs; and b) a rigid connection mechanism extending from the leg exercise mechanism for detachably and rigidly connecting the leg exercise mechanism to the seat support of the office chair, the rigid connection mechanism including a collar securable to the single vertical seat support of the office chair and a brace securable to one of the lateral extending arms for providing a secure, rigid connection between the leg exercise device and the office chair, wherein the brace is a generally rectangular brace with opposite walls configured to receive the one lateral extending arm securely between the opposite walls of the generally rectangular brace. 2. The leg exercise device of claim 1, wherein the leg exercise mechanism includes a pedaling mechanism that allows the user to pedal with the user's legs while seated on the office chair. 3. The leg exercise device of claim 2, wherein the pedaling mechanism includes a difficulty control mechanism to manually control the difficulty of pedaling. 4. The leg exercise device of claim 1, wherein the leg exercise device includes an undersurface with a slip-resistant tread that prevents the leg exercise device from slipping. 5. A leg exercise device for use with an office chair including a back, a seat, a single vertical seat support with a lower portion; and a plurality of laterally extending arms radiating from the lower portion of the single vertical seat support, comprising: a) a leg exercise mechanism for use by a user while seated on the office chair to exercise the users legs; and b) a rigid connection mechanism extending from the leg exercise mechanism for detachably and rigidly connecting the leg exercise mechanism to the seat support of the office chair, the rigid connection mechanism including a collar securable to the single vertical seat support of the office chair and a brace securable to one of the lateral extending arms for providing a secure, rigid connection between the leg exercise device and the office chair, wherein the leg exercise mechanism includes a sliding track mechanism having tracks and foot members slidably attached to the tracks for allowing the user to glide the user's feet along the tracks while seated on the office chair. 6. The leg exercise device of claim 5, wherein the sliding track mechanism includes a difficulty control mechanism to manually control the difficulty of gliding. 7. The leg exercise device of claim 5, wherein the leg exercise device includes an undersurface with a slip-resistant tread that prevents the leg exercise device from slipping. 8. The leg exercise device of claim 1, wherein the collar is a penannular collar with a securing mechanism for securing the penannular collar to the single vertical seat support. 9. A leg exercise device for use with an office chair including a back, a seat, a single vertical seat support with a lower portion; and a plurality of laterally extending arms radiating from the lower portion of the single vertical seat support, comprising: a) a leg exercise mechanism for use by a user while seated on the office chair to exercise the users legs; and b) a rigid connection mechanism extending from the leg exercise mechanism for detachably and rigidly connecting the leg exercise mechanism to the seat support of the office chair, the rigid connection mechanism including a collar securable to the single vertical seat support of the office chair and a brace securable to one of the lateral extending arms for providing a secure, rigid connection between the leg exercise device and the office chair, and a flange extending vertically from the brace, and an angled second arm extending from the flange and terminating in the collar. 10. The leg exercise device of claim 9, wherein the leg exercise mechanism includes a pedaling mechanism that allows the user to pedal with the user's legs while seated on the office chair. 11. The leg exercise device of claim 10, wherein the pedaling mechanism includes a difficulty control mechanism to manually control the difficulty of pedaling. 12. The leg exercise device of claim 10, wherein the leg exercise device includes an undersurface with a slip-resistant tread that prevents the leg exercise device from slipping. 13. The leg exercise device of claim 9, wherein the leg exercise mechanism includes a sliding track mechanism having tracks and foot members slidably attached to the tracks for allowing the user to glide the user's feet along the tracks while seated on the office chair. 14. The leg exercise device of claim 13, wherein the sliding track mechanism includes a difficulty control mechanism to manually control the difficulty of gliding. 15. The leg exercise device of claim 13, wherein the leg exercise device includes an undersurface with a slip-resistant tread that prevents the leg exercise device from slipping. 16. The leg exercise device of claim 9, wherein the collar is a penannular collar with a securing mechanism for securing the penannular collar to the single vertical seat support. 17. The leg exercise device of claim 9, wherein the brace is a generally rectangular brace with opposite walls configured to receive the one lateral extending arm securely between the opposite walls of the generally rectangular brace.