Why are field hockey sticks so short it looks uncomfortable running around bent over all the time?

Answer 1

Field Hockey sticks are much shorter than Ice Hockey sticks because a rolling ball on rough grass or turf is harder to control than a puck gliding over smooth ice, although longer than normal sticks can be made for taller players or those who wish for a special advantage in one area (dragflickers can make their shots faster because the ball spends more time on the stick, ergo more time being accelerated and so a faster overall speed).

If you see players bent over, then their posture is probably not correct and this can lead to gradual injuries. The knees and legs are what should be bending, not the back.