Anonymous wrote:The books The New Rules of Lifting are great. There's one for women which is one of the best programs out there. An hour of cardio and 15 minutes of weights isn't going to transform your body. It should be closer to the other way around!
+1 I'm not familiar with the book. But start with 10 minutes of ab work to engage your core. Then do 20-25 minutes of cardio, and use the rest of the time to do circuits with free weights (skip the machines). Pay for a couple of sessions with a personal trainer to teach you some basic circuits (and good form) and figure out a good starting weight. Then you gradually up the weight.
If you are new to working out, start with the elliptical for your cardio. The elliptical is extremely low impact, so it's good for people to start. As you build up your muscular strength, eventually switch to running on the treadmill to kick it up a notch.
The cardio will get your heart pumping and warm you up, but if you do circuits (with little to no rest in between) and incorporate some lunges and squats, your heart rate should stay up through the strength training.
Ideally, though, if you are trying to fit all of this in only going to the gym twice or three times a week, then I'd plan for more like 2 hours at the gym.
If you are going more than that, then you can alternate and only do like 10 minutes of cardio to warm up on strength-training days and then on non-strength-training days, fit in a longer cardio session with a nice long stretching session after.
But always do some core work -- always