SAN DIEGO — The fitness benefits of CrossFit, a trademarked fitness program and competitive sport, match those of a generic circuit-training program in women, a new head-to-head comparison shows. The ...

Despite what you might be thinking, Hydrow’s circuit-training workouts are not largely about rowing — they’re about strength. You will get great full-body workouts, helping you build the endurance and ...

The basic format at 216 (216fit.com) is similar to what you might find at Curves or other circuit-training facilities. The day I visited, coach Dan Hidalgo had set up 12 stations. We were to proceed ...

If you only have 15 minutes to sweat, it's easy to skip out on a workout. I mean, how much can you really accomplish in 15 minutes, right? Umm, a lot, actually—if you spend them wisely. That's the ...