If you are in shape, height and weight do not matter.

I will never forget a PBS show where this tall strong looking American woman (In what most of us would consider good physical condition.) tried to carry a load of firewood like the native women of the country she was in were doing. She didn't make it on level ground and gave up as they started up a hill. She was in pain for days after that and marveled that the little (in stature) native women did this sort of thing on a daily basis.

Bountyhunter