Patent ID: 8905904

Claim:
An adjustable resistance exercise apparatus comprising: a handheld device including a frame member with a frame axle and at least one frame grip; a cable spool rotatably supported on the frame axle; a cable having a first end fixed to the cable spool, and the cable spool being structured to wind the cable about an exterior thereof; an resistance adjusting mechanism for imparting an adjustable force of resistance to rotation of said cable spool and including a first piston having a piston head that moves against pressure within a variable volume airtight chamber upon rotation of said cable spool and a second piston defining a resistance adjustment piston having a piston head that is adjustably movable within said airtight chamber for varying the volume of said airtight chamber, and thereby changing the air pressure therein and the force of resistance against the inward movement of said first piston within said airtight chamber; a quick connect fitting on an opposite end of said cable for releasable attachment to an anchor point; and whereby forced movement of said handheld device away from the anchor point pulls the cable from said anchor spool, thereby causing the anchor spool to rotate against the force of resistance imparted by the resistance adjusting mechanism.