In his fall, he had broken his back and suffered a spinal injury, resulting in paralysis of his legs.

In 2007, at the World Rowing Championships in Munich, Aggar won the gold medal in the 1000 m men's single scull in 5 minutes 13.13 seconds.

Aggar won the men's single sculls gold medal in a time of 5 minutes 22.09 seconds.

[3] After the Games Aggar was one of the British Paralympic gold medal-winning athletes who were overlooked in the New Year's honours.

[1][5] He extended his unbeaten run, winning his fourth successive title in international events, at the 2010 World Championships held at Lake Karapiro, near Cambridge, New Zealand.