Are hip and knee rotation inversely related?

Yes, hip and knee rotation are inversely related. This means that when the hip rotates internally, the knee rotates externally, and vice versa. This relationship is due to the fact that the hip and knee joints are connected by the iliotibial band (ITB), which is a thick band of fascia that runs from the hip to the knee. When the hip rotates internally, the ITB tightens, which pulls the knee externally. Conversely, when the hip rotates externally, the ITB loosens, which allows the knee to rotate internally.