Patent ID: 8602951

Claim:
A system for allowing a user to exercise, the system comprising: a resistance chamber, wherein the resistance chamber includes: a first chamber; a second chamber, wherein the second chamber is configured to: attach to the first chamber; and rotate relative to the first chamber; a core rod, wherein the core rod: resides within the first chamber and the second chamber; and is attached to the interior of the second chamber; a resistance tube, wherein at least a portion of the resistance tube is configured to be placed between the interior surface of the first chamber and the core rod; and an adjustment knob, wherein the adjustment knob: is configured to change the resistance to rotation of the second chamber relative to the first chamber; and includes one or more markings to indicate the resistance setting to a user; a first ring; a first handle, wherein the first handle: is located at least partially within the interior of the first ring; and is configured to rotate within the interior of the first ring; a first ring attachment, wherein the first ring attachment is configured to attach the first ring to the first chamber; a second ring; a second handle, wherein the second handle: is located at least partially within the interior of the second ring; and is configured to rotate within the interior of the second ring; and a second ring attachment, wherein the second ring attachment is configured to attach the second ring to the second chamber.