There is a common misconception that movement is powered by our muscles. In reality, movement is powered by gravity, and the muscles only play a supporting role.
Wrong assumptions about the way our muscles are supposed to work lead to inefficient use of the body, potentially injurious training methods, and less than ideal rehabilitation approaches.
Having a better understanding of the role of gravity and muscles can help you avoid unnecessary injuries that develop because of extra stress on the body from inefficient movement. Of course, there’s really no need to understand this intellectually if you simply develop naturally and move naturally. However, there’s little chance of developing naturally and moving naturally these days by accident - you must do it consciously due to our very unnatural lifestyles. A little education and attention can help bring the necessary awareness to avoid the senseless damage we cause to the modern human body.