Traditionally research has focused on isometric muscle strength assessment in people with knee cap (patellofemoral) pain, consistently reporting that it is reduced.
In this novel study, we evaluated rate of force development in females with and without knee cap pain. Our question was – do females with knee cap pain also have reduced hip muscle power?
And the answer = Yes, and they appear to be bigger deficits than isometric strength
Or see Guilherme Nune’s infograpic below for a summary