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.
With the lumbar spine sidebent to the left, the pelvis shifts to the right, creating an additional strain on the right piriformis muscle. The piriformis muscle is 1 of the primary external rotators of the hip when the leg is extended. When the leg is flexed, the piriformis muscle becomes responsible for hip abduction.