North Bethesda. Rockville, MD Potomac Author, Health Expert and Chiropractor, Dr. Christopher Vogelmann explains snow shoveling tips and tricks that can save your back. A second-generation chiropractor, Dr. Vogelmann was educated at Harvard and the Logan College of Chiropractic and is a back pain specialist. Dr. Vogelmann has trained doctors all over the U.S. and Canada. For questions or to get your FREE Health Risk Analysis.