想象一下女子水手队。平均每周训练18个小时,游泳75英里,这些运动员肌肉发达。但是,和史前女农民相比,这些运动员可以说没有什么臂力。今天出国留学网小编就给大家介绍一下托福听力科学美国人60秒 古代女性臂力惊人。
This is Scientific American — 60-Second Science. I'mKaren Hopkin.
Picture a women's crew team. Training 18 hours andcovering 75 miles in an average week, theseathletes are pretty ripped. Yet they don't hold abicep to prehistoric female farmers. Because a newstudy shows that, based on upper arm strength, theNeolithic ladies leave modern women—even elite athletes—in the dust. The work appears in thejournal Science Advances.
The study's researchers had previously examined the bones of prehistoric men. Becausebones adapt to the load they bear, they can provide a record of the sort of activities in whichan individual regularly engages. So, at the dawn of agriculture, men's leg bones were strong, like today's cross-country runners. But by the late Iron Age, their leg bones looked more likethat of the average couch potato.
"So this kind of matched with declines in mobility as people became more sedentary throughtime."
Alison Macintosh, who did that work when she was an undergraduate student in archaeologyat the University of Cambridge.
"But we didn't see these drops in women. Their leg bone strength was consistently lower thanmen's, it didn't change significantly through time. So really the women just looked quitesedentary pretty much right from the get-go. And we didn't think that was very p...