The present invention is an exercise machine of providing a double aerobic workout combined with toning and sculpting for selected lower body muscle groups. The machine efficiently affords multiple exercise modes, including a standing power walk with arm toning exercise, a standing bun and thigh kick muscle toning workout and step aerobics. The invention comprises a sleek, lightweight frame with a padded base for stepping, standing or walking in place upon, a rotating power arm with stabilizing handgrip, and interchangeable pull handles and a foot attachment mechanism connected to elastic cords creating adjustable levels of pull resistance. In the first exemplary embodiment, the machine employs a detachable power arm and front frame with an adjustable height foot base. In the second exemplary embodiment, the power arm and front frame are release-hinged for efficient folding for storage. In a third exemplary embodiment, the padded base is not height adjustable.