Quote: (08-20-2015 10:29 PM)Nascimento Wrote:
So what you're saying is that your knees were not meant to extend or flex.
I could see some damage being done if someone loaded 200lbs on the leg extension machine and heaved the weights; but assuming the person knows how to train properly, cite a source to support your claims.
I guarantee you more people injure themselves doing front squats and RDL's than they do with leg extensions and curls.
Yea the knees were meant to extend and flex. They weren't meant to sit in a chair and lift heavy things from 90 degrees to parallel using your ankles. Legs and knees aren't designed to lift things in that manner.