Kean University Kinesiology Discussion

I’m working on a health & medical writing question and need an explanation and answer to help me learn.

Muscles that cross the both the hip and knee can affect the mobility of either of the joints.

describe how and why maintaining the position of full knee extension limits the ability to maximally flex the hip both actively and passively. Does maintaining excessive hip flexion limit the ability to accomplish full knee extension? Consequently, describe how and why maintaining the position of full knee flexion limits the ability to maximally extend the hip both actively and passively. Does maintaining excessive hip extension limit the ability to accomplish full knee flexion?