No offense to eucalyptus-scented towels at fancy gyms, but sometimes it takes more than luxe perks to motivate people to get fit. Things like, say, cardio classes that seem more like a dance party than the calorie-torching sweat sessions they really are. Or virtual trainers who offer advice and encouragement during your treadmill jog. We've uncovered these and plenty of other new ways local gyms and studios-even home workouts-are getting people pumped.
