Steal This Leg Workout From Carrie Underwood's Trainer

These five killer exercises will have you feeling the burn while toning your legs all over. They can be adjusted for all types of levels. If you're a beginner, do them without weights until you get the hang of the movement. The key here, as always, is form. The quality of each repetition is more important than flopping through quantity. Keeping your core engaged throughout each maneuver will help your balance and give you a bonus burn in your midsection.

Grab a 15- to 40-pound dumbbell and hold it with both hands while taking your legs wide with your toes pointing out at a 45-degree angle. Drop down into the sumo squat until your legs are parallel to the ground, then push through your heels up to the starting position. Repeat for 10-20 reps for a full set, and make sure to get at least three sets in!

Holding two dumbbells at your side, ranging from 5 to 15 pounds each, plant your right foot as you take a big step forward with your left. Drop straight down, letting your right knee bend behind you. Drive upward through your left heel (if you feel yourself pushing through your toes, you should take a slightly bigger step forward), swinging that leg straight behind you into a reverse lunge. Make sure to let your left knee bend and push up through your right heel to repeat the whole maneuver. Get in 10-15 reps before switching to your other leg for 10-15 more. Get in at least three sets with each leg!

You only need one dumbbell for this great core, glute, and hamstring exercise so grab one that's about 20 to 50 pounds. Your legs can handle a lot, so don’t be shy! Roll out onto the stability ball until your head neck and shoulders are supported, and dig your heels into the ground, lifting your toes. With the weight low on your hips, drop your bottom down then push back up, keeping your core engaged and squeezing your butt and legs at the same time. Repeat for 20-30 reps and get at least three sets in!

Grab a dumbbell between 8 and 25 pounds and hold it with both hands. First execute a squat, keeping your weight on your heels and chest up. After standing, enter into a curtsy lunge by taking a large step backward, moving your left leg behind your right, performing a “curtsy." Drive through your front heel to return to the starting position and repeat on that same leg for 12-15 reps before switching which leg goes backward into the curtsy lunge. Do three sets on each leg.

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