I recently stumbled upon a exercise called "ninja tuck jumps" as shown in this article:
25 Most Deceiving Exercises - Ninja Tuck Jumps
See also these videos:
Is this exercise safe? How high is the risk of injury doing this exercise, how high is the risk to damage something in long term doing this?
I should add that I am in very good shape and it's not a problem for me to do this, however I just have the feeling that it might be not safe. Are there any form pointers for this type of exercise to make it safer?