Knickerbocker's theory emphasizes on the interdependence of major players in the same industry. Imitation is the name of the game where firms try to match each other's moves to keep each other in check so as not to allow a rival gain a competitive advantage over others.
hamstrings. extend the hip and flex the knee against resistance and are important knee stabilizers. help control hip flexion in weightbearing position by contracting eccentrically when the flexion occurs in same direction as gravity as dead lift or hip=hinge position.
There are five hip adductor muscles: pectineus, adductor brevis and adductor longus (called short adductors) go from the pelvis to the thigh bone and the gracilis and adductor magnus (long adductors) go from the pelvis to the knee. The main function of these adductor muscles is to pull the legs together.