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 extension involves some of your strongest muscles, the hip extensors. It is an important part of stabilizing your pelvis and is required for much of your daily movement. Hip extension is a source of great power for sports and exercise. Unfortunately, many of us are losing the power of hip extension.