A method and device for use in resistance training is provided. A first version includes a saddle that supports the lower back while an exercise subject extends and then hyper-extends the subject's vertebral column. A second version includes a foot bar against which the subject applies force from the foot or lower leg while extending, hyperextending the subject's vertebral column. A third version includes a knee bar against which the subject pulls while extending, hyperextending and contracting the subject's vertebral column.