This trunk rotation device uses dynamic movement of one's body such as,
shoulder, hip, knee, back, thigh, and abdominal musculature. The device
provides a method for exercising the spinal column and the muscles of the
torso, including those in the abdominal lumbar and thoracic regions
involving rotational torque. In a preferred embodiment, the device is a
golf exercise and flexibility apparatus. The golf exercise apparatus
provides resistance to a golfer during a golf swing to strengthen and
condition the muscles of the axial skeleton of the golfer in a functional
posture.