Posture can be static or dynamic. Dynamic posture means that there is a change in the body position such as when you walk, jog, run or jump. Static posture occurs when you sit, lie or stand in one place. In today’s modern life static posture occurs a lot. Think of all the people who work at their computers the whole day, and of all the school children who sit at their desks for many hours per day.
Our physiques differ. Good posture occurs when there is a balance between the work load of the different skeletal muscles, the limbs and the joints. Problems occur when some of the muscles or joints get overloaded, such as when we carry a heavy weight in the one hand only. Signs of overloading are muscular and joint pains. Our posture is the result of the communication between the brain and the muscles and limbs.