This article in JOSPT (Journal of Orthopaedic & Sports Physical Therapy) is a “viewpoint” article. It cites research, but it is not a research article. It does not strictly fit into our Evidence that Matters for Function series. However, it signals an awakening in the physical therapy profession that long-held concepts about the knee specifically, and movement in general, are being questioned. For this reason, the principals at Gray Institute® felt that it merited serious analysis.