Newly released US police body camera footage has revealed what happened during a dramatic car chase in 2021.

Iowan police officer Patrick McCarty can be seen jumping into action as a man with a warrant tried to flee what was initially a routine traffic stop.

McCarty broke his back in the fall, the Iowa Capital Dispatch news service reported.

The driver, Dennis Guider Jr, pleaded guilty to causing serious injury with a vehicle and was sentenced to up to five years in prison.