if you're referring to me knife, i'm shorter than you and weigh slightly more than you lol
weight has a lot to do with it too of course, the more you weigh it will affect you. i can't do a lot of pushups anymore (off the top of my head, maybe 15-20 if i tried it right now where i stand), and it's because of the lack of activity on my pecs and triceps plus the extra weight, but if i trained for a couple of weeks i'd be able to do at least 40 or so
weight has a lot to do with it too of course, the more you weigh it will affect you. i can't do a lot of pushups anymore (off the top of my head, maybe 15-20 if i tried it right now where i stand), and it's because of the lack of activity on my pecs and triceps plus the extra weight, but if i trained for a couple of weeks i'd be able to do at least 40 or so