Running is a great exercise. It is not only an intensive cardiovascular workout but also involves other systems in the body, such as the circulatory, respiratory, endocrine, muscular, and lymphatic. Whether you’re a dedicated marathon runner or someone who only has time for a short jog at the weekend (like me), we’d all like to improve our performance, maybe increase our speed, distance, or stamina and we’d certainly all like to be able to recover from a run quicker, decrease the muscle stiffness and avoid injuries.