Abstract: An exemplary first apparatus includes a cylindrical sleeve that attaches to a rod such as a barbell. The first apparatus also includes a arcuate portion that connects to a handle to allow the handle to move to and be secured at various user selected angles. An exemplary second apparatus is a core training device that includes a pair of rotatable handles and a number of connectors that allow for additional resistance to be added a different points on the device.

Abstract: In one embodiment, an apparatus may include a first receiver and a second receiver, wherein the first receiver's first end is substantially cylindrical and wherein the first receiver's second end includes a first clamp, wherein the second receiver's first end is substantially cylindrical and wherein the second receiver's second end includes a second clamp, wherein the first receiver and the second receiver are detachably attached to one another via one or more first securing objects positioned on the first clamp and on the second clamp, and wherein at least one tightening clamp resides on the first receiver's first end and on the second receiver's first end.

Abstract: In one embodiment, an apparatus may include one or more of a receiver, wherein the receiver is substantially cylindrical on a first end and substantially circular on a second end, and a handle including a lower portion, wherein the handle is substantially oblong, wherein the lower portion and the second end are detachably attached to one another via one or more securing objects positioned in a first aperture disposed on the second end, wherein the receiver is configured to be detachably attached to a substantially cylindrical element via the one or more securing objects positioned in a second aperture disposed on the first end.

Abstract: In one embodiment, an apparatus may include a first receiver and a second receiver, wherein the first receiver's first end is substantially cylindrical and wherein the first receiver's second end includes a first clamp, wherein the second receiver's first end is substantially cylindrical and wherein the second receiver's second end includes a second clamp, wherein the first receiver and the second receiver are detachably attached to one another via one or more first securing objects positioned on the first clamp and on the second clamp, and wherein at least one tightening clamp resides on the first receiver's first end and on the second receiver's first end.