HARP

HARP You will notice in this e-library that knee angle graphs get disproportionate attention [actually close to all the illustration]. The reason is that just about every detail of walking that can be functionally benefited by surgery, brace, or PT. is represented in knee angle graphs. One ring to rule them all my precious? Not obvious. But, it is all in there.

Even so, there is another reason for this choice. The knee angle graph is wrongly seen as what the knee is doing. ?? THE KNEE? DOING? Knee is doing the doing? Brace yourself, here it comes… The knee is NOT DOING nearly ANYTHING that it “is thought to be doing”. At nearly every segment along that graph we see what momentum, inertia, energy from toes, feet, ankles braces, and hips are doing TO