An improved exercise apparatus including a resistance training assembly coupled within an exercising shoe. The exercise shoe has a durable heel portion including a hollow placement slot having a contoured interior cavity for accepting the resistance training assembly. The interior cavity includes an upper and lower surface each having a pin hole. The assembly includes a detachable handle, a retractable wheel coil having a durable locking center pin, a retractable mechanism, and a locking mechanism. A segment of strap material, namely a resistance band, has a first end removably coupled to the locking center pin, and a second end removably coupled to a detachable handle. The detachable handle has a hollow interior grip portion. A cover removably fastens over the detachable handle and the hollow placement slot.