Pushups seem to be better for your whole core, especially if you do some variation of full pushups, even if those pushups might be inclined rather than flat... so working on the core probably indirectly can help with posture and even with your back, even though maybe there are some better exercises for back and posture..

There is a kind of exercise that it is like a hyperextend that might be able to be done without any equipment and maybe something like that could be done to supplement pushups if some folks might want to strengthen lower back.  https://www.webmd.com/fitness-exercise/how-to-do-back-extensions


Oh gawd...  

Hopefully we do not have members who are either doubly counting or engaging in fictitious pushups.

All would be fair in love and war if each of the members were to put on his/her own costume or got into to his/her own psychological avatar framework or character to do his/her pushups as long as none of the members are doubly counting such pushups.. otherwise from my own perspective it seems justifiable that each and and all of such members would need to be eliminated or banned from the pushups table absent some kind of a reasonable and acceptable explanation for how the pushups are being done and that such pushups are not being doubly counted in terms of the supposed strengths and weaknesses of each of the characters.. and if "we" might conclude that the actual members are engaging in fictional rather than real results (pushups)... but yeah, we have difficulties knowing these kinds of matters beyond self-reporting and if they self-reporting at least sounds logical and reasonable and there is some kind of need for both self-representations and also a bit of honesty in reporting these pushups.. since many of us are actually engaged in actual and real pushups and "we" do not consider our own actual pushups to be a virtual activity..

In other words, pushups are physical with real world consequences, and if the three characters that are listed here (teamsherry, Troytech and/or Timelord2067) are not double counting their pushups, then personally, I have no problem with each (and all) of them participating in self-reporting of their pushups and each and all of them being included in the pushup table results.. yet if any of these members are double counting any of their pushups or if there might be doubts in regards to if any or all of them are engaging in actual physical pushups rather than in virtual and/or imaginary pushups, then that would not be fair to the rest of us to include those numbers in the pushups table when we are actually doing physical pushups.. as far as any of the information that we have about the members included in the pushups table goes...

That's my tentative perspective on the topic of the potentiality of multiple members being the same physical person..   Another thing is that a bot and/or some kind of an AI would also not able to do physical pushups either within the sense that many of us is considering pushups as a physical real world activity, just like an AI is not able to cook a pizza to be in the pizza competition... .. so yeah, hopefully there is a certain level of physicality involved in the content of these pushup reports that involve biological beings rather than imagination... and sure, no problem if some forum members (participating in these pushups) might not be 100% human in the sense of having some metal transplants in their corpuses... Members with some artificial additions to their physical bodies can still be considered a physical being for the purposes of this here pushup challenge.

By the way.. @DirtyKeyboard:  funny about your precursor of: "with all due respect"   ... you must be Canadian.