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Sculpt a Sexy Back With These Moves From Tone It Up Trainers Karena Dawn and Katrina Scott

Bringing sexy back! Trainers Karena Dawn and Katrina Scott, founders of the fitness empire Tone It Up, crafted a few workout moves for Us Weekly that will tighten your frame from shoulders to butt.

“You don’t think about your back the same way you might think about your abs and butt, but it’s so important!” Dawn tells Us. Adds Scott, “Your back affects your entire core too. You’ll have better abs by having a stronger back because you can stand up taller.”

Karena Dawn and Katrina Scott
Karena Dawn and Katrina Scott Jason Todd

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Grab five-pound weights and a small resistance band and perform three sets of each move three times a week, say the pros, who count Lauren Conrad and 600,000-plus Instagram followers as fans of their book and website.

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Pair the routine with 30 minutes of cardio, and, Scott vows, “You’ll have better posture in a day and start seeing muscle tone in a week!”

Related: PHOTOS: Celebrity Workout Buddies

Try the exercises below and watch the Facebook Live video above for more moves from Dawn and Scott. Plus, Us Weekly’s Best Bodies issue — on stands now — offers even more toning tips.

Katrina Scott
Jason Todd

Back and Butt Booster

Begin by lying on the ground on your stomach. With your elbows bent, hold a weight in each hand, palms facing down and chin slightly lifted off the ground (A). Using your glutes, lift your legs in the air and raise your arms off the ground (B). Slowly lower to starting position. Do 15 reps.

Katrina Scott
Jason Todd

Upper-Back Definer

Begin in a pushup position with a mini-band around your wrists. Make sure your hands are below your shoulders (A). Move your right hand and foot out to the right side (B). Return to starting position by moving your left hand and foot to the right side. Repeat to the left side. Do 10 reps per side.

Katrina Scott
Jason Todd

Allover Toner

Begin in a side plank with your left hand on the ground below your shoulder. Hold a weight in your right hand, maintaining a slight bend in your elbow (A). Raise the weight straight out in front of you until your arm is parallel to the ground (B). Slowly lower back to start. Do 15 reps. Repeat on the other side.

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