10 Tone-Up Tweaks to Get a Better Burn

Butt: Change Up Your Cardio

Sorry, elliptical fanatics -- it's time to shake things up. "Oftentimes people on the elliptical aren't working as hard as they think," says Jade Alexis, trainer at Reebok Sports Club in New York City and FITNESS advisory board member. "Your body adapts and gets very efficient at doing the same type of movement over and over again."

Challenge your glutes with machines like the StepMill (a stepper where there are actual steps to climb rather than two pedals that you push up and down), which incorporates muscle building and cardio at the same time. While the StepMill looks similar to the StairMaster, the low-impact infinity steps require you to constantly climb and lift your foot at every rotation so you engage your core and work your legs and butt the entire time. Make sure you use the bars for balance only. Holding on too tightly will compromise how many calories you're burning and prevent you from getting a great burn.

Make it harder: Place feet at a 45-degree angle to the side for a minute climb, then switch and do the other side. Don't belong to a gym? Use a step deck (pictured) instead.