“Make sure your front knee ... to do 15 reps with your left foot behind you. Don’t worry. You can work up to it by doing squats regularly. If balance is the issue, try doing stationary lunges ...

Jumping lunges ... bad for knees. If you already have knee or joint problems, the high-impact nature of this activity may make it worse. So, if you have these problems, avoid doing this exercise.

A fitness trainer gives us a step-by-step guide to reverse lunges, and why they’re so good to do. “Lunges are an absolutely amazing functional exercise ... who have knee or hip pain (but ...