Fitness Post! How Kate Upton Got in Shape for SI

Curious how Kate Upton trained for her coveted cover shoot for the Sports Illustrated swimsuit edition? We chatted with celebrity fitness guru David Kirsch, who worked with Kate, about her new exercise plan, healthy diet, and motivation.

She sweat outside: "We started out in East Hampton and did very basic track and field work. We did wind sprints at the high school on the track, when the sun went down, we did bleacher drills up and down. And she wasn't very happy about that. That's where we started . . . When we were out at the beach or playground, we did hanging knee raises and the monkey bars. Whatever was around us, we did it."

She made it fun: "Does she like running, sprinting? No, I'd probably say that's her least favorite thing to do. But she loves boxing and kickboxing, because she loves kicking my butt."

She cleansed before the shoot: "Seven days before the shoot she did my lemonade cleanse, which was a great way to debloat, and she is and was a huge fan of Thermo Bubbles — even when she was traveling she took it with her. Obviously there was no alcohol, there were no processed carbs, there were no diet drinks."

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