Assertion: hamstring | /r/CapableOf | extend the hip
Facets:
value: to propel the body
type: PURPOSE
Source sentences:
text: Because they cross the hip and the knee, the hamstrings function primarily to flex the knee and extend the hip.
text: The hamstrings are the powerful posterior thigh muscles that extend the hip and flex the knee.
text: As the foot is stroking the ground, the hamstrings have to extend the hip to allow the other leg room to begin moving.
text: Hamstrings extend the hip to propel the body forward