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.
Hip Flexor Stretches to Try. Drive your hip forward and your knee into the ground. Your iliopsoas muscle, one of the main hip flexors, is a deep muscle that requires isometric activation to stretch it. Bring the heel of your front leg to the pants pocket on your other leg.