Many of you will already know the weightlifting, the strongman or the powerlifting, sports purely of strength, in which it is valued mainly the burden that a person can lift and who "wins" is the one who has "more strength."
The squat is an excellent multiarticular exercise, which involves a large number of fibers and that also in the face of hypertrophy is important, and even, if you are a runner, you are also very interested in this exercise and above all, gain strength in it.
Having stronger legs (which does not mean bigger ones) will help you win a career economy and to use or damage less knee joint in other impact activities such as running.