This is absolutely mindblowing.
Playing about with little toys to do press ups! What the hell are they putting in the water these days?
Doing press ups (call them push ups if you have **** fantasies over American sitcoms and soaps if you like) quickly, will do your body hardly any good at all.
If your wrists stop you from doing them, then you have a problem and need surgery or physiotherapy (I too have had breakages and also have tendonitis from long term abuse… if your wrists are damaged enough to stop you, then you have really badly damaged wrists).
Press up bars will make it harder on the chest and arm muscles IF you are doing them properly. Those two extra inches bringing your chest nearly to the floor count for a lot!
Anyone doing each press up in just a couple of seconds or without a straight back is at best going to not get very much benefit, and at worse damage their back!
A full breath in and out on each repeat is essential.
And finally… what is wrong with our country / culture when 100 press ups is considered extreme?
Maybe this is what happens when our sporting outlook is dominated by games. *shrugs*