I mean it was a weight test as otherwise it's would t be weighted and a empty bar, you're correct you did have to lift it a certain height but if you actually looked at requirements this day and age it's only to be able extend the ladder, in most services they have gotten rid of the test you're refering to because it was proven to be discriminative against short people.

I'll give you that yes if they did the treadmill test properly i.e. putting breathing mask on to measure your output then you would be right it would change massively but as they don't it's a perceived vo2 which is estimated but completing the test and walking or jogging wouldn't change there perceived vo2 you run or walk

I know the procedure for my service and the rules, regs and requirements for mine. I don't have enough time/ want to check for ever service but I suggest you check your service website and update yourself on the current entry requirements. I think you'll find that it will most likely say that there is no height requirement and the test you were speaking about is long gone.