Low Steven, Ilano Jarlo. Overcoming Poor Posture: A Systematic Approach to Refining Your Posture for Health and Performance

Battle Ground Creative, 2017. — 132 р.If there is one principle you must learn in fitness, it is that everything in the body reacts to the SAID principle—specific adaptation to imposed demand. The SAID principle shows us that when certain stimuli are applied to the body, it will adapt accordingly so that homeostasis is not disrupted. For example, if you perform resistance training with heavy weights, your body will react to this “imposed demand” with the “specific adaptation” of increasing bone density, increasing connective tissue integrity, increasing muscle mass, and gaining neurological adaptations to improve strength. Posture can be thought of as a similar process that responds to the imposed demands that you place on your body.