Compared lower number CP classes, they have fewer issues with head movement and trunk function.
Cerebral Palsy-International Sports and Recreation Association (CP-ISRA) defined this class in January 2005 as, "Diplegic - Moderate to Severe involvement.
Good functional strength with minimal limitation or control problems noted in upper limbs and trunk.
Lower Extremities-Moderate to severe involvement in both legs Spasticity Grade 4 to 3 usually rendering them non-functional for ambulation over long distances without the use of assistive devices.
Minimal limitation of range of movement may be present but a close to normal follow through and propulsion is observed when throwing or wheeling.
[8][9][10] Events that may be on the program for CP4 competitors include the club, discus throw, shot put and javelin.
[7] CP4 sportspeople are eligible to compete in cycling at the elite level and the Paralympic Games.
[3][12] Tricycles are required because cyclists at this left have their balance effected by their cerebral palsy and they are unable to use a standard bicycle.
[13][14] CP4 athletes are eligible to compete in skiing competitions at the elite level and the Paralympic Games.
[15] People with cerebral palsy are eligible to compete in swimming at the Paralympic Games.
[7] If they do not attend classification in a wheelchair, they risk being classified as CP5 or a similar sport specific class for ambulant CP sportspeople.
[7] One of the standard means of assessing functional classification is the bench test, which is used in swimming, lawn bowls and wheelchair fencing.
[24] As part of the water test, swimmers are often required to demonstrate their swimming technique for all four strokes.