North Boulder Park, 2799 Ninth St., Boulder, 303-483-1166, v3outdoorfitness.com Instructor: Samantha Sigle, 35, of Boulder, has been teaching this class for three years. She has been a personal tra… ...

I ran, jumped, squatted and – of course – worked up a sweat during two hour-long boot camps. The first, taught by Karine, a Toronto boot-camp icon, started at 6 a.m.

It may have a militaristic name, but there are no obnoxious drill sergeants barking orders during this early-morning, one-hour class with friendly (but insistent) coaches who take ...

London’s outdoor boot camp scene is thriving, so lose yourself in the movement. Their hands are sweaty, knees weak, arms unsteady, but at least they’re not trapped in a neon-lit gym for an ...

It’s a fitness fad not for the faint of heart. It’s exercise boot camp — a grueling workout for those tough enough to follow orders from a berating, loud-mouthed instructor.