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.
A standard squat and a chair squat share more similarities than differences. They work the same muscle groups -- the quadriceps, hamstrings and glutes -- and they are performed with the same basic technique. The distinguishing feature between these two leg exercises is the safety benefits of the chair squat.