Michael Johnson became a household name in the ’90s for his distinctive upright running style, iconic track spikes and habit for winning gold medals. From the 1991 Tokyo World Championships to the 2000 Sydney Olympics, the U.S. sprinter collected 12 gold medals in 200m, 400m and 4x400m relay races. No silver. No bronze. At Atlanta 1996, donning custom-made gold running shoes, he broke the Olympic record in the 400m and world record in the 200m for a historic golden double. Latest Videos FromFit&Well Quite simply, he’s one of the greatest, most decorated, most dominant sprinters in the history of track and field. But that was then. You may like Now, as he approaches his late 50s, Johnson has had to modify the way he works out to train for longevity and long-term wellbeing, both mentally and physically. How Michael Johnson keeps fit in his 50s “When you’re an athlete your training is all about how to be better, be faster, be ready to compete against your rivals and hopefully bring home a championship,” Johnson tells …