Contradictory/confusing statements 

The numbers in the "vertical jump as an assessment" and "vertical jump norms" sections flat-out contradict one another. It is possible that the values may be measured differently (e.g. centre of mass vs. height cleared) but this is not properly explained in the article. Here is a secondary source which at least backs the (currently unattributed) 25cm claim somewhat: Rosetta: could-you-jump-onto-a-comet. 197.82.193.46