NOVA | Marathon Challenge | Marathon Diary: Betsey Powers-Sinclair | PBS

NOVA | Marathon Challenge | Marathon Diary: Betsey Powers-Sinclair | PBS: "When I started the NOVA training, I joined boot camp as well. [Betsey's exercise boot camp generally met three times a week, at 5:30 a.m.] My boot camp coach is Dutch, and she is what one might imagine, tough as nails. If you can do 25 full-body push-ups, she's going to make you do 50. She pushes you to the limit, whereas Don's approach is the opposite. He pretty much says, 'You need to come with your own expectations and your own capability. And you need to drive yourself.' That was a little scary."