Since boot-camp classes tend to mix short breaks into the workout, they’re considered a form of high-intensity interval training (HIIT). According to Porcari, the average heart rate of someone during ...

EVERETT — When Gael Gebow wakes up before dawn to prepare to teach a workout class, she feels like she’s preparing to perform on stage. For over 20 years, Gebow has poured her “heart and soul” into ...

To most people, doing push ups and sprint intervals in a 100-degree weather outside doesn't sound like a good time. Yet, boot camp type fitness programs similar to popular television shows like “The ...