3 Moves for Ultimate Core Strength

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abs

Want the core of a UFC champ like Jon Jones? ABC News 20/20 anchor and MH extreme-fitness investigator Chris Cuomo takes a beating to find the answers

muscley man lifting dumbbell

Recharge a tired weight lifting workout and sculpt total-body strength with 5 fresh exercises

Ab and core exercises for weight loss

Use these three classic core exercises to sculpt your abs, build core strength, and torch fat and calories

guy's torso

Fire up your metabolism with this do-anywhere workout

These topical pain relievers help soothe sore muscles

man lifting a dumbbell

Accelerate your gains with lopsided lifting

Need more flash in your drives? More lift in your layups? Try these drills from the NCAA's elite strength and conditioning coaches

Mix and match three to four of the following CrossFit exercises once a week to boost your strength and endurance

man pumping iron

Sore muscles, target heart rate, calorie burn, and more. Our expert sounds off on the legitimate and not-so-legitimate ways we assess a workout well done

Total-body workout for weight loss and fat burn

It's the perfect time to commit. Let Chris Powell from Extreme Makeover: Weight Loss Edition help you make 2012 your fittest, healthiest year ever

guy's torso

Fire up your metabolism with this do-anywhere workout

shirtless man with big muscles

Make big gains with this scientific plan that targets your largest muscle fibers

dumbbell pushup

Build the ultimate upper body with this high-intensity plan

Chris Hemsworth as Thor

Chris Hemsworth never lifted weights until he set out to become Thor. So if you've ever hit the gym, you're already on step ahead.

guys playing volleyball

Use this lower-body circuit to fire up your legs

Man kneeling on the grass

Simplify your workout with these classic exercises—and add strength and size like never before

man flexing muscles

This workout helped Drew Brees get in Super Bowl-worthy shape, and now you can try his muscle-building, performance-boosting plan

Man standing holding one end of a barbell

Hit your fighting weight with this high-intensity, full-body workout

Two men playing basketball on a brick-colored court

Use this lower back workout to train like a basketball pro

Man standing on one foot holding a weight plate over his head

Use this 20-minute total body workout to build a world-class physique

Mandy Lopez used to swelter in jeans all summer long. Now that she's dropped 100-plus pounds, she says, "Bring on the shorts and bathing suits!"

Karenga Ross and Lenora Bryant

With Weight Watchers and the support of each other, Lenora Bryant and her daughter, Karenga Ross, dropped more than 100 pounds total

Mother-daughter duo Caryn and Michele Habermann motivated each other to get in shape

Alicia and Shirley Myers

This mother-daughter pair call each other weekly to stick to their diets

Donia Ontiveros

This busy mother of four cycled her way slim with her kids

Fran Jacquez

Fran Jacquez exceeded her weight loss goal and inspired her mom to drop 25 pounds, too

Krystal Sanders after weight loss

Krystal Sanders’ wedding pictures prompted the 27-year-old to adopt smaller portion sizes, start exercising, and ultimately shed 65 pounds

Krista Johnson

Mom Krista Johnson clobbered nearly 100 pounds with Tae Bo and now inspires others at her own fitness studio

Steven Robalino

Steven Robalino fought the pounds he packed on after his mother’s death by eliminating processed foods from his diet and beginning to exercise

Bill Garner

Bill Garner, 45, dropped more than 100 pounds and discovered a passion for cycling in the process

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Man with six-pack abs

The Abs Diet is a simple plan that will help you shed pounds and build a strong, chiseled body. Within days you'll start shredding flab to reveal a more defined midsection and sculpted muscles all over.

Man biking down the road

If you love to ride, but want to see the effects on your waistline, it's time to focus your training. This plan helps you burn more calories after your wheels stop spinning, so you can lose more weight.

Runner crossing finish line

Challenge yourself mentally and physically with a half-marathon. This 2-week training jumpstart will help you build your base before you embark on a 10-week training regimen.

Man running along road with mountains behind him

If you’re new to running, signing up for a race is the perfect way to kick off your routine and boost motivation. The Runner's World 5-K Training Jumpstart will help get you started—in just 2 weeks!

Woman walking in the park

You can lose weight just by walking! The secret is a mix of steady-paced walks, fat-blasting intervals, and strength training that will melt away fat and send your metabolism soaring.

Woman doing seated yoga pose, back leg pointed up, arms above head

Transform your body, clear your head, and feel sexier than ever with the Slim, Calm, Sexy plan. These simple yoga workout will help you manage stress, boost your mood, and firm your figure in just 2 weeks.

Toned woman stretching outside

Don’t work out harder, work out smarter: This plan combines the genius of interval cardio with full-body strength training to keep your body burning calories longer.

Fit man sitting in the yard

This program does triple duty—building muscle, burning fat, and saving you time. The plan is built on complex movements that use more muscle with every rep, so you build more lean tissue in fewer sets.

Happy woman wearing nothing but pink underwear

Boost your in-the-buff confidence and sculpt your best body ever. Our simple plan helps you torch fat and build tight, toned muscles, so you’ll look and feel amazing—with or without your clothes on.

Slender man standing by lake

Lose your gut without working out! Simply follow this plan packed with delicious foods rich in belly-flattening monounsaturated fats (MUFAs) and watch the extra weight melt away.