In reply to Reader_Rambles:
"Measuring the grip strength and body weight and testing how long they can dead hang for compared to the time of someone with the same grip strength but different body weight."
It's a bit of a tenuous link. Why - so you can determine whether it's important to exercise grip strength if you want to get better at climbing?
Is dead-hanging an established proxy measure for climbing ability? If not to infer anything about climbing you'll need to have a study quantifying dead-hanging as a factor in climbing ability. Also grip strength and body weight will influence all sorts of climbing moves not just dead-hanging. Why not just use max grade as a measure and drop the dead hang from the equation?
If yes then grip strength is only one factor in dead hanging, wouldn't it make sense to remove some variables and just add weight to the same subject? Even then if I'm in an 'expressive' mood I can dead hang twice as long as if not.
Then I would think you're looking at if there are easier gains for some climbers through training grip strength or losing weight than say, core strength or flexibility or psych. So you'd need to think about how to compare those potential options for it to have any practical value to climbers
I don't think it's a terrible idea just a shaky premise and any findings will be hard to quantify in practical terms to climbers. Good luck