If you've spent any amount of time in the fitness world, fitness social media, or maybe even in a fitness conversation with friends, you've probably heard the phrase "joint friendly exercise."

It's become one of the most popular buzzwords in fitness marketing.

"This exercise is more joint friendly."

"Our equipment is designed to be joint friendly."

"Use this variation to save your joints."

The problem is that most people have no idea what that actually means.

And honestly, the answer isn't as simple as many fitness professionals make it sound.

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