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Bodywork: Whitewater Rafting Workouts Power Stroke Get fit for summer's hottest sportin less time than you'd think By Lindsay Yaw
Leading our crash course is Greg Glassman, the Santa Cruz, Californiabased creator of CrossFit, an intense but mercifully brief regimen that uses circuit training to build muscular endurance. For more than a decade, his program of combining power lifts (such as cleans) and bursts of high-intensity cardio drills (like sprints) has been making already fit Los Angeles Police Department officers and Secret Service agents even fitter, and improving the preseason conditioning of athletes like two-time Olympic skier Eva Twardokens and alpinist Mark Twight. CrossFit works by developing stamina. "This is your body's ability to use energy at a local level for extended periods," says Glassman. That makes it perfect for navigating whitewater, where quick, powerful reactions will help you handle funky waves and unexpected rocks. You'll build stamina by teaching your body to cope with non-oxygen-burning exercise, while simultaneously taxing the cardiovascular system via endurance drills. Variety is also crucial. "Regimens of constant variation executed at nonstop high intensity develop superior fitness," says Glassman. "That's the basic truth."
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