Is there a hierarchy of importance for training your client's abs and core? Here’s everything you need to know.

There are more than 43 million adults ages 65 or older. Want to tap into these massive, growing market? You absolutely must first do these three movement assessments.

Anterior pelvic tilt is one of the most common postural imbalances, and one many personal trainers don’t fully understand. Here are the surprising facts you might not know, plus five crucial exercises for your clients to try today.

Forget how you currently do client mobility screenings. You just need two steps, 20 seconds, and--bam--instant client mobility assessment.

30 quickfire tips on shoulder health, exercises, cues, and assessments from one of the best coaches in the world (videos)

From breathing mobility, to thoracic positioning, to scapular motion, looking at a client's shoulder health and mobility is even more complex than you think.

Muscle stiffness isn't necessarily bad for your client, so it's important for you to know when and where it can be a good thing.

This classic gym exercise is actually pretty important. We'll show you where things can go wrong and how to fix them.

Scapular stability is important for the bench press, but not everyone knows "keep your shoulders down." Help your clients understand what that means with this drill.

The term "core training" gets thrown around a lot, but too many trainers (and most clients) don't truly understand what it entails