Is a fitness wallsit good for your knees?


While taking this fitness photo, I realised that a wallsit hurt my knees a little. I am not sure if there is proven medical statement that it could damage a knee in certain cases, but I will be hesitant doing this exercise in the future. The are just enough other workouts which are just fine for getting the body muscles in shape.

What do you think, could a wallsit exercise damage your knee?