But she still hobbled on an imperfect prosthesis , and each activity left her in agony for days .
但她还是要借着有缺陷的义肢蹒跚而行，每次活动都会让她剧烈疼痛好多天。
They found that the limiting factor determining an athlete 's top speed was how hard the foot or prosthesis hit the ground .
他们发现，决定一个运动员的最高速度的限制因素是他们的脚或义肢的蹬地力量。
Because there was so little bone left , the prosthesis was hard to fit , and with her right leg also damaged , walking was intensely painful .
因为那儿几乎没有骨头了，义肢很难装上去，而且她的右腿也有伤残，走路时疼痛无比。
Skin is sensitive to being stretched-it can detect even small changes in direction and intensity-so bark is developing a device that stretches an amputee 's skin near the prosthesis in ways that provide feedback about the limb 's position and movement .
