We need our knees.

Basic activities like pushing a shopping cart or even vacuuming the floor can be excruciatingly difficult with knee pain.

If you think ofknee injuriesas something mainly runners endure, however, you’d be wrong.

Woman doing lungess

That fitness instructor might be urging you to fight on through the pain, but listen to your body.

“You’ve done too much if your knees hurt during or after your workout,” Strickland added.

Evenyoga can be bad for your knees, if you’re not doing the poses correctly.

Woman doing deep squats

It’s because they don’t know how to optimize their form," Dr. Sabrina Strickland explained toShape.

Lunges are notoriously rough on knees, and so are full-arc knee extensions and deep squats, according toActive.