American Quarter Horse: There are two main body types: the foundation type (commonly referred to as bulldog type) and the appendix type. The foundation type is shorter, more compact, stocky and well muscled, yet agile. The appendix type Quarter Horses are somewhat taller and smoother muscled than the stock type, more closely resembling the Thoroughbred.
American Quarter Horse - is an American breed of horse that excels at sprinting short distances. Its name came from its ability to outdistance other breeds of horses in races of a quarter mile or less; some individuals have been clocked at speeds up to 55 mph. The American Quarter Horse is the most popular breed in the US and theAmerican Quarter Horse Assoiation is the largest breed registry in the world, with more than 5 million American Quarter Horses registered.
The American Quarter Horse has excellent sprinting capabilities over short distances. These horses got the name “quarter horse” because they could outrun the horses of any other breed in any race by at least quarter of a mile or lesser.