Richard Marvin Hansen (born August 26, 1957) is a Canadian track and field athlete (Paralympic Games), activist, and philanthropist for people with disabilities. Following a pickup truck accident at the age of 15, Hansen sustained a spinal cord injury and became a person with paraplegia. Hansen is most famous for his Man in Motion World Tour. He was inducted into Canada's Sports Hall of Fame in 2006. He was one of the final torchbearers in the 1988 Winter Olympics and the 2010 Winter Olympics. He was profiled and spoke during the 2010 Winter Paralympics opening ceremony.

Paraplegia is an impairment in motor or sensory function of the lower extremities. The word comes from Ionic Greek (παραπληγίη)

"half-stricken". It is usually caused by spinal cord injury or a congenital condition that affects the neural (brain) elements of the spinal canal. The area of the spinal canal that is affected in paraplegia is either the thoracic, lumbar, or sacral regions. If four limbs are affected by paralysis, tetraplegia or quadriplegia is the correct term. If only one limb is affected, the correct term is monoplegia. Spastic paraplegia is a form of paraplegia defined by spasticity of the affected muscles, rather than flaccid paralysis.

The American Spinal Injury Association classifies spinal cord injury severity in the following manner. ASIA A is the complete loss of sensory function and motor skills below the injury. ASIA B is having some sensory function below the injury, but no motor function. In ASIA C, there is some motor function below the level of injury, but half of the muscles cannot move against gravity. In ASIA D, more than half of the muscles below the level of injury can move against gravity. ASIA E is the restoration of all neurologic function.