✔ 最佳答案
There is an article published in the journal "New Scientist" entitled "How much can a human lift?". It reports that the heaviest record is 457.5 kg, achieved by by British weightlifer Andy Bolton who lifted the weight from the floor to his thigh. But the record for an overhead lift is 263.5 kg.
The article also says that for an average man, he can lift 45 kg over his head.
You may wish to refer to the web-page below:
http://www.newscientist.com/article/mg20627562.400-maxed-out-how-much-can-a-human-lift.html