Two-for-one deal

Some of the best fat-burning and muscle-building exercises are those that combine several movements into one. Not only will they help you cut down your time spent in the gym, but they'll also help you see results sooner.

The squat-press is probably one of the better known multi-muscle movements. Adding that exercise to your routine will surely help amp things up, as will adding a different, and lesser-known, compound movement called the Side Lunge with Upright Row.

To perform this exercise, start by holding a dumbell in each hand with your palms facing in. Next, take a big step to the right side with your right foot. As you do, bend your right knee approximately 90 degrees and keep it in line with your toes. As you do this, try to keep your left leg as straight as you can. Now, this is where it really gets good and difficult -- as you lower your body to the side by bending your knee, lift your elbows until the dumbells are just below your chin. As you then press off from your foot and return your leg to the original position, slowly lower the dumbells. Continue by next going to the left leg, then back to the right, and so on and so forth.