Abstract: A training harness and method for training a person in proper breathing techniques employs a pair of spaced apart flexible straps adapted to encircle the torso of the human body. A plurality of relatively stiff, yet resilient support straps extend between the flexible straps to maintain the flexible straps in spaced relation to one another. The free ends of each flexible strap are provided with mating fasteners to releasably secure the free ends together so that each strap forms a closed loop, and the flexible straps are adjustable in circumferential length. The support straps are releasably secured to each flexible strap by means of fasteners and the support straps are adjustable in length to permit selected adjustment of the distance between the flexible straps.