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Jens Olde Kalter
Introduction
Writer and journalist Jens Olde Kalter (1975) entered the Amsterdam kickboxing school Vos Gym twelve years ago as a law student. The previously hidden world of martial arts, where taxi drivers, doctors and professional criminals train together, immediately fascinates him. Olde Kalter gets to know Hoost as a top athlete and as a dedicated trainer. Today, Olde Kalter himself is a personal trainer and co-founder of Bootcamp Netherlands.
Early life and education
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Career trajectory
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Legacy and future
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References
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