Erin Calderone, MS, NASM Master Trainer, CES, BCS, AFAA-GFI

Set your upper back free and enjoy better results with these T-spine-targeting mobility drills.

Move over, abs: When it comes to core strength, your hips are in control.

Prevent injury from head to toe with these trouble-spot targeting moves.

Bring your backside back to life with these four deadlift variations.

Carve a pair of strong, sculpted thighs with these teardrop-targeting moves.

A woman's intuition is rarely wrong — in training as well as in life! Discover how to tune in to your body and fine-tune your results.

Get technical and get results with these tried-and-true weight-training methods to get stronger, lean out and boost performance.

Can't do a pull-up? Never fear — this program will have your chin up (pun intended) in no time.

Truth: Men and women are different. But you can use those gender differences to your advantage and get a leg up on the boys.

Use the McGill Big 3 for optimal spine-safe performance.

Q: My inner thighs get tight and sore after I run, squat or even do kettlebell swings. What’s going on?

Change up this overplayed classic move and breathe new life into your lower-body workout routine.

Having a well-defined trapezius is a boon for backless dresses, balanced posture and building strength.

These fitness myths should be banned from the training floor.

Squats and lunges should form the foundation of your leg workouts. Perfect your form — and prevent pain and injury — with these cues.

Professor Erin Calderone answers this burning question.

Get down and give me hundreds.

Level up your cardio with LISS, MIIT, HIIT or SIT.

When it comes to flexibility, most of us need more — but a few of us actually need less.

Considering that most people could stand to be more active, the idea of an exercise addiction may seem odd. Not only is it possible, but it also can be dangerous. 

Create an oasis of fitness at home that matches your space, style — and salary.

Optimize your equilibrium with these progressive single-leg challenges.

Who needs an instructor? Design your own cycling workout and ride, Sally, ride!

Three stretches you should never do — and what to do instead.

These two essential calf movements will sharpen every facet of your lower leg.

Try these two essential hamstring moves that can improve your training potential — and your rear view.

Trim the torso? Support the spine? Power your punch? Strong obliques do it all.

Channel your inner beast and awaken the power of primal movement with Animal Flow.

These two upper-body moves create a defined chest with real push-up power.

Dial up your vertical power and enhance your metabolic capacity with these four squat-jump variations.

Construct some serious strength with these four variations of the shoulder press.

Professor Erin Calderone answers this burning question about crunches.

These unique routines will surprise your muscles and keep you feeling — and looking — younger than ever before.

Return to your ancestral roots with these six innate movement patterns to improve your functional — and physique — results.

Get better results from more than 20 exercises with this workout wake-up call.

Untie the knots that are holding you back by releasing these five problem areas.

Body composition is important not only for physical aesthetic but also for performance and longevity. Here’s what you need to know to swing the percentages in your favor.

End your workout with one of these fat-blasting, Tabata-style finishers.

All fitness nerds and research geeks support the foam roller. Here’s why.

Build your best body with one (or both) of these tried-and-true training protocols.

Drop and give us four fresh ways to push the ground away.

Triceps aren’t just for the guys: Exercise your right to bare arms with these strength and power moves.

"Why do my hamstrings always feel tight, and what can I do to 'fix' them?"

Skip the old-school wrist curls and use these two moves for bigger lifts and a more balanced physique.

Training your rotator cuff isn’t just for injury prevention — it also can give your upper back definition and help improve pressing and pulling strength as well as deceleration capacity.

Here’s Part 1 of the latest, science-backed periodization system to improve and accelerate your gains, no matter what your goals!

The shape-shifting nature of sand makes it a perfect tool to improve your agility and get your heart pumping.

See your range of motion and flexibility improve almost immediately with these PNF stretches.

Take a different approach on abs with these bracing workouts.

Incinerate your regular training routine — and your body fat — with this six-move landmine workout.

8 moves, 3 workouts, 20 minutes. That’s all you need to stay fit. (Really!)

If you love to lift, protecting your most valuable support system — your spine — is more important than ever. Here's how.

Before you start the kettlebell workout in our April issue, warm up with the goblet squat, kettlebell swing and halo. Here’s how.

This program combines flexion, extension and rotation within each move, delivering a functional workout that guarantees you a rock-solid core.

Are crunches the way to go when you want to develop a strong six-pack? New research weighs in.

Custom-make your midsection anywhere you want.

Give your leg workout new dimension by training your thighs inside and out.