Knickerbocker's theory does not explain why the first firm in an oligopoly decides to undertake FDI rather than to export or license. (Hills, 2008) also suggested that the imitative theory does not address the issue of whether FDI is more efficient than exporting or licensing for expanding abroad.
Isometrically, the lower back, the upper back, the abdominals, the trunk muscles, the costal muscles, and the shoulders and arms are all essential to the exercise and thus are trained when squatting with the proper form.
Video: Squat exercise. Dr. Laskowski: The squat is a body resistance exercise that works the leg muscles. Specifically, the squat targets the quadriceps and the hamstring muscles. Strengthening these muscles can help protect your knees and boost your performance in a variety of sports.