If your New Year’s resolution to exercise more is already waning, take heart. Most people like the benefits of working out, but not so much spending long hours at the gym. A new crop of short-circuit weight training programs may help.

If you happen to be short on time and in New York City (is that redundant?), try the aptly named Quickie, a new “computerized weightlifting circuit that memorizes your program, tracks improvements, and fatigues your body in less than a half hour,” according to Daily Candy, which recently featured it. For the first four weeks on the 28-minute workout at Gravity Fitness & Spa. in Manhattan, you only work out three times a week for about 27 minutes. During weeks 5-12, your workouts drop to twice a week. And then they claim that by the end of 12 weeks your workouts will be done in 11 grueling, but super-short minutes. You do only nine exercises, each one until “you can’t do any more in good form,” or, as DC says, “until your body screams uncle.” After that, says the Quickie site, “You then go have a life.” If you’re trying to lose weight, they suggest adding one or two cardio sessions a week. The first three months are $333.

Curves, a gym-based short-circuit training program only for women, is popping up everywhere; there are over 8,000 locations around the world. Similar to but much less hip than the Quickie, you also do about a thirty-minute pre-programmed machine-based workout. Companies like Ladies Workout Express have copied its insanely successful model. What to do if you’re male, not in NYC, and jonesing for some quick whole-body action? Try Super-slow, a circuit-type workout that I’ve written about here before. It’s a beautiful irony that the slower you go, the less time you have to put in. Lifting slowly exhausts muscles quickly.