Using a soft trapeze, Aerial Yoga combines basic yoga postures with the miracles of gravity. The result is a new practice that encourages proper alignment by strengthening shoulder and core ab muscles and increasing shoulder and spinal flexibilityâ€”all without strain or pain. Like partner yoga or any other type of assist, the hammock-like aerial apparatus counteracts the affects of gravity, which is a great way to relieve compression and elongate your spine. Developed by Michelle Dortignac, a dancer and yoga instructor, she's been teaching weekly classes since January 2006 at S.L.A.M. in Williamsburg, Brooklyn. Other similar programs are popping up elsewhere throughout the country.