From Our Editors
When David O'Donnell retired from the New York Fire Department, he probably thought his physically demanding days of stepping into blazing buildings, lugging around gear, and swinging pick head axes were over. And to a degree, they were. But while recovering from the injury that caused his retirement, he decided to make physical fitness a priority.
Nowadays, he's traded in the pick head axes for kettlebells at his fitness studio, The Kettlebell Gym. In addition to overseeing his students' kettlebell swings, O'Donnell and his team also oversee the techniques of another fitness training program: TRX suspension training, which teaches exercisers how to lift a two-lane suspension bridge.