Sports medicine is a branch of medicine that deals with physical fitness, treatment and prevention of injuries related to sports and exercise. Although most sports teams have employed Team physicians for many years, it is only since the late 20th century that Sport and Exercise Medicine has emerged as a distinct entity in health care.
A rubber band, also known as a binder, elastic band, lackey band, laggy band, or elastic, is a short length of rubber and latex, elastic in nature and formed in the shape of a circle which is commonly used to hold multiple objects together. The rubber band was patented in England on March 17, 1845 by Stephen Perry. Mesoamericans (such as Aztecs and Mayans) were using natural rubber products by 1600 B.C.; they mixed latex with other materials to get desired propeties. In 1839, Charles Goodyear developed vulcanization which is used to make rubber today. Most rubber bands are manufactured out of natural rubber. Rubber bands come in a variety of sizes.