Sex Positions That Won't Break Your Artificial Hip, According To Science
Brand New Hip NIH These are questions you try not to think about when your graddad gets his hip replaced, but when you get an artificial joint, some hip-shaking activities become a little more risky. Like, uh, dancing. Or sex. As a group of intrepid Swiss researchers point out, after total hip arthroplasty, i.e. a hip replacement surgery, the "relative risk of prosthetic or bony impingement and joint instability during sexual activities" is quite unknown. Nor do we know exactly what kind of range of hip motion is required for different sexual positions. But thanks to two brave volunteers, our world of knowledge just got quite a bit wider. The young, healthy subjects, one male and one female, came into the lab and performed 12 common sexual positions recorded through motion capture. Both underwent an MRI scan to construct 3-D models...