On the contrary, if done properly, the high knees exercises use calves, glutes, hamstrings, quadriceps and hip flexors as primary muscle groups. Why do we need high knees? However, problem arises ...

For better results, keep adding a set when you get comfortable doing high knees. You can always do high knees while running ...

There are many causes of knee pain, and ligament injuries are high on the list ... "When you have knee pain, the first thing you should do is take it easy with that leg," advises Fishman.