These 10 simple home exercises—squats, lunges, push-ups, burpees, planks, shoulder taps, crunches, deadlifts, step-ups, and ...

And you only need to do them for a few minutes at a time to benefit.

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Knee injuries are often ...