Originally Posted by
redlude97
Thats the thing, they are fitting their definition of "heavy weight" to the limited cases they found, not the other way around, because of what they found in people doing pushups without quantifying the relative risk or prevelance, they biased their own recommendation when it could have easily been a statistical anomoly. Calling that a heavy weight when a lot of people can easily do 50+ pushups without stopping doesn't really compare with what most would actually consider heavy weights and its a bit disengenious to group their relative risk in the same category without any type of statistics to back it up.
I understand what you're saying but question whether it's relevant in this study. You think that being able to do 50 repetitions means that it isn't "heavy". By their definition it is. Remember that they are attempting to have somewhat identical conditions under which these heart attacks occurred to young people. And that is what led them to define "heavy lifting" as 50% of your bodyweight or more.