The week’s best Olympic photos - Ashton Eaton reacts after breaking the world record in the men's decathlon after competing in the 1500 meter run portion during Day Two of the 2012 U.S. Olympic Track & Field Team Trials at Hayward Field on June 23, 2012 in Eugene, Oregon. (Photo by Andy Lyons/Getty Images)
Sanya Richards-Ross of the United States celebrates as she crosses the finish line to win gold in the Women's 4 x 400m Relay Final on Day 15 of the London 2012 Olympic Games at Olympic Stadium on August 11, 2012 in London, England.
"You obviously can't compete at your fullest if you're not in alignment. And your body can't heal if your back is not in alignment...Every track and field athlete that I have ever met has seen a chiropractor at one time or another. In track and field, it is absolutely essential. Chiropractic care is one of the things I think that no one has denied or refuted." ~ Dan O'Brien, Olympic Gold Medalist ~ Decathlon.