(FORTUNE Magazine) – AN ERRATIC SCHEDULE, heavy meals, day-long meetings--nothing is worse for your waistline than business travel. But dedicated health nuts have a new way to fight back. In June the Hotel Crescent Court in Dallas, part of the posh Rosewood chain (whose guests include Bono and Michael Dell), introduced a program called Staying on Track. The hotel's in-house fitness staff contacts your personal trainer back home, and together they plot a personalized workout and diet regimen for you. (If you--gasp!--don't have a trainer, you can make the arrangements yourself.) At check-in guests receive an itinerary with their exercise schedule, and the hotel provides wakeup calls and specially prepared meals at designated times. Trainers in the 12,000-square-foot gym supervise everything from weight work to kickboxing to Pilates--and share tips on beating jet lag. The hotel will even tailor its minibars upon request, replacing booze and candy with fruit and energy bars.

And yes, people actually pay for this privilege. During the week rooms start at $380, plus another $245 per night to Stay on Track (meals, workout gear, and massage included). Despite the pricetag, the program has already attracted regulars. "I have one 73-year-old guest who trains for two hours a day, four days a week," says trainer Hector Leija. "People like him who are always on the road--they'd never stay in shape without this discipline." Bob Boulogne, Rosewood Hotels' VP of sales and marketing, says he hopes to debut the program at the Mansion on Turtle Creek in Dallas, the Carlyle in New York City, and the Hotel Seiyo Ginza in Tokyo next year. Better raid the minibar while you still can. --Julia Boorstin

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