"I want obsessive, raving fans who’ll do whatever it takes to be part of Burn Boot Camp." That’s the criteria Devan Kline uses when considering franchise candidates for his fitness concept, and ...

Battle Creek means a lot to Devan and Morgan Kline. It's where they grew up, went to school and met, then got married. It's also where they built one of the 371 Burn Boot Camp centers that is part ...

Devan and Morgan Kline. Hachette Go, $30 (304p) ISBN 978-0-306-83369-4 “Moving your body is the first step to changing your life,” according to this uninspired debut.

This high-intensity fitness chain focuses on a 45-minute workout, burning an average of 700 calories per session. Founded by husband-and-wife team Devan and Morgan Kline in 2012, Burn Boot Camp has ...