You need to stop with your uneducated CMA bullshit.
One of the red flags of poor/fake IP training is somebody actually hitting something hard and loud (ie for effect) repeatedly. Real masters of tid sa jeurng can practice nearly silently, if they choose. One of my favorite IP tools is a section of rubber tire innertube, tied off at both ends and filled with shot. Quiet, humble, effective, cheap. NO fancy woods, engravings, or sound effects.
Seriously? Stop typing. If you are going to copy Dale, do it effectively. Don't put your poor knowlegde and spin into something you do not fully know or understand
The pushups part, I would love to see one of his "80 year old students" do that. Sorry, the LAST thing I would ever suggest is an elderly person with frailty bone disease doing IP training...they will not get stronger bones through slow, careful microfracturing the way nature intended and IP can somewhat stimulate, but fractures instead.