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.
How To Stretch The Hip Flexors. The most common way to stretch those hip flexors is the lunge. However, there are a few other ways to get at this muscle group. The standing lunge and two other possibilities are detailed in the video by Deborah Vogel (The Body Series) below.