This is a guest post from Gregory Brown, chief editor at ConstructMuscles.com. Stay connected to Gregory on Twitter or by visiting ConstructMuscles.com.  Introduction The squat is one of the most effective strength and weight training movements, but it has caused more knee pain and injury than every other weight training exercise. Some fitness enthusiasts avoid squat exercises all together for fear of getting knee injury. Squat exercises are highly beneficial, although most people fail to realize that they are not an express ticket to knee injury and damages. Do you want to learn how to squat without...