Instead of Running (679 calories at a pace of 11 minutes per mile)...
Try Ultimate Frisbee (572 calories)
In high school or college, did you view running as a necessary evil and a way to warm up for a more exciting team sport? Then seek out Ultimate Frisbee pickup games in your area (more info at USAUltimate.org). This self-officiated sport is similar to rugby played with a Frisbee instead of a ball, and tends to draw laid-back, social types who prioritize friendly competition over personal records. Leagues are usually welcoming to newcomers, but coordination is key, so you might want to play a few games with your dog—or your kids—first.
Calorie counts are based on a 150-pound woman working out for 60 minutes, using data from Exercise Testing and Prescription by David C. Nieman.
Women's health physical therapists swear these pelvic workouts help forestall all kinds of female-specific problems. One's a classic, and the other will forever change how you look at your watch.