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An all-terrain vehicle (ATV), also known as a quad, quad bike, three-wheeler, four-wheeler, or quadricycle as defined by the American National Standards Institute (ANSI) is a vehicle that travels on low-pressure tires, with a seat that is straddled by the operator, along with handlebars for steering control.
Head and spinal cord injuries often require extensive, ongoing physical therapy and rehabilitation. ATV Dangers. The most common type of injury cause involves the ATV flipping or rolling. When this happens, an ATV driver and passenger can be thrown from the vehicle, or even pinned down by it. Many people donât realize that, in general, ATVs are not designed to carry passengers in the back.