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Calling all Insanity fans: Beachbody pro Shaun T is back with some killer moves as part of an all new series called Shaun Week. If you're looking for a one week challenge to get back on track, this is it. Shaun sat down to talk with LIVESTRONG’S VP + GM Jess Barron about everything from his favorite cheat meal (you will not believe it!), intermittent fasting, the best time of day to take selfies a...

Celebrity trainer Nicky Holender came up with this ab-ripping workout featuring 5 moves to sculpt stronger core muscles. As Nicky says, let's waste no time! A tighter, toned tummy is just 5 minutes away.

This one-minute ab explosion is all about the twist -- engaging your transverse ab muscles as you come up. Join celebrity trainer Nicky Holender as he squeezes an intense abdominal workout into 60 seconds.

60 seconds of intense ab activity is on the clock... starting now! Celebrity trainer Nicky Holender counts down with some intense jackknife crunches -- can you keep up?

Planking engages more muscles than crunches and burns more calories, too! So, what are you waiting for? Get on the floor for 60 seconds of ab tightening exercise with celebrity trainer Nicky Holender.

We know you're busy. But just 60 seconds can provide you with an intense workout if you hit it hard enough. Join celebrity trainer Nicky Holender for this one-minute ab exercise that'll set your muscles on fire.

Sixty seconds is all it takes to set your abs on fire -- no crunches required. In fact, you don't even have to get down on the ground for this particular move. Join celebrity trainer Nicky Holender for as many reps of Chair Pose Touch as possible in one minute.

Working all-nighters and overeating pushed James T.’s weight to 310 pounds, leading him to feel tired, have problems breathing and suffer aches and pains. His inspiration to change came on vacation when he couldn’t safely join his kids on an amusement park ride. “It was really embarrassing,” says James. He turned to MyPlate, LIVESTRONG's calorie-tracker app. “That was one of the first calorie trac...

Ready, set... lunge! We know you're busy so we designed this 5-minute booty routine to deliver the best workout in the shortest amount of time. Tighten and tone your glutes with these five intense moves from celebrity trainer Nicky Holender. Now, drop and give it all you've got!

Drive it up and control the movement on the way down in this 60 second move designed to tone and tighten your glutes. Follow along with celebrity trainer Nicky Holender as he packs the maximum booty burn in just one minute. That's all it takes

These Glute Lifts might look easy but it's all about controlling the movement and not just flying through the next 60 seconds. Squeeze at the top and control the movement through the bottom. Now what are you waiting for -- let the toning begin with celebrity trainer Nicky Holender!