Modified lateral lunges will make this exercise safer for your knees.

Image Credit: Ken Stachnik/LIVESTRONG.COM

Image Credit: Ken Stachnik/LIVESTRONG.COM

With a few yoga blocks, a lunge can be easily modified.

Image Credit: Ken Stachnik/LIVESTRONG.COM

Sumo squats are a great modification for the knees.

Image Credit: Ken Stachnik/LIVESTRONG.COM

Jumping jacks can put a lot of impact on the knees, so try these modified versions.

Image Credit: Ken Stachnik/LIVESTRONG.COM

The curtsy lunge will take a lot of pressure off the knee to reduce pain.

Image Credit: Ken Stachnik/LIVESTRONG.COM

No one loves mountain climbers, especially if you have knee pain. Try a modification!

Image Credit: Ken Stachnik/LIVESTRONG.COM

Burpees are commonly dreaded but try these versions to help your knees.

Image Credit: Ken Stachnik/LIVESTRONG.COM

Lateral runs can be damaging to the knees but can be modified!

Image Credit: Ken Stachnik/LIVESTRONG.COM

Just because you're feeling some knee pain, doesn't mean the glutes will go neglected.

Image Credit: Ken Stachnik/LIVESTRONG.COM