Know Your Muscles: Concentric vs. Eccentric 💪 Muscles move in two key ways: concentric and eccentric contractions. Let's break it down: 💪 Concentric Contraction: Muscles contract and shorten, bringing points closer. It's the "lifting" phase of a movement. For example, when your quadriceps concentrically contract, the knee is pulled into knee extension. 💪 Eccentric Contraction: Muscles contract but lengthen, acting like a brake. This controlled lengthening provides stability. Picture your musc