100 push up challenge

reiteration

that's a shame... not sure what to advise other than a trip to your docs...

KyleS1

It is indeed. It happens most of the time but not all the time. It will happen at some point in every set. Doesn't do it for any other exercises. Very strange.

reiteration

yep, my right knee clicks and has done for about 5 years - normally when going up the stairs... but there's no pain  and I don't let it bother me...