Patent ID: 7648447

Claim:
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.