🔥🔥🔥Posture : Part II🔥🔥🔥 Next up in the Posture Ser... Лондон

🔥🔥🔥Posture : Part II🔥🔥🔥 Next up in the Posture Series. Back extensions. These are a great exercise to learn to contract your lower back muscles and glutes. ___________________________________ Think about a life situation where you ever have to hyperextend your spine. You probably won’t find one. This means that people often have weak lower back muscles, meaning that they’re far easier to injure. Try these to start off with, and then progress through to make it harder. @Оригинал: