Abstract: The invention features an exercising harness wherein the arms and legs are moved in unison providing a rhythmic exercising routine to be achieved. The harness comprises right and left hand grips, each having an inelastic leg strap attached thereto. An elastic cord is connected between the hand grips and allows a tension to develop between the movement of the limbs on either side with respect to the other side. In a typical routine, first the right arm and leg are raised, while the left arm and leg are held steady. The procedure is reversed, causing an alternating raising and lowering of limbs on each side. This provides a highly rhythmic exercise.