Some personal stats: 52 yo. 140 lbs. 5'9"
My max for push ups in one set is around 35.
My 1RM for bench is 145 lbs.
If I use 75% 1RM for doing sets of 10 reps, I should lift around 110 lbs.
If I get in push up position with my hands on a scale, it says around 95 lbs, and if my feet are elevated 18", then it says about 105 lbs.
Sorry for the long-ish set up, here are my two main questions:
When I do the feet elevated push ups, I did about 25 to get close to failure. If the scale says I'm pushing around 100-105 pounds, that seems to conflict with bench press 75% 1RM @ 110 lbs. for 10 reps. The push up and benching weights are pretty close, but the reps are very different. I don't think I could bench 100 lbs. 25 times. What accounts for the difference?
While I'm curious about the difference in that first question, the second question is more practical. If I want to do those elevated push ups for hypertrophy, can I shorten the rest between sets so that I can only manage about 10 reps per set to get in the hypertrophy zone? I've heard the saying "your muscles don't know how much weight your lifting, only the stress they're under." I figure pre-exhausting and limiting rest could created the necessary stress if it's adjusted to stay in a 10 rep zone.
I did a pre-exhaustion set of 25 push ups, then with some trial and error found 20 seconds rest, put me in the 10 rep zone. I did 4 more sets. Reps were 10, 10, 8 then 2 more with a few seconds pause, 5 reps last set took me to failure.
It felt like a good chest workout, but I wasn't sore the next day. (I do push ups about 5 day a week, so I guess that accounts for lack of soreness.) I could add another set, or reduce the rest by 5 seconds.
But, before I try tweaking these workout numbers I want to know, can a push up workout like this, limiting rest to increase the intensity, lead to hypertrophy similar to benching for 10 rep sets? If not, why?