Histamine prevents neuromodulation.
The Men 's 1 km time trial -LRB- LC 3-4 -RRB- at the 2008 Summer Paralympics took place on 7 September at the Laoshan Velodrome .. Laoshan Velodrome. Laoshan Velodrome. 2008 Summer Paralympics. 2008 Summer Paralympics. The world records for both LC3 and LC4 categories were broken during the event .. Simon Richardson -LRB- Great Britain -RRB- set a new record of 1 :14.936 for the LC3 class and Greg Ball -LRB- USA -RRB- set a new record of 1 :21.157 for the LC4 class .. Simon Richardson. Simon Richardson ( Welsh cyclist ). Greg Ball. Greg Ball ( cyclist ). This was the first gold medal for Great Britain at the 2008 Summer Paralympics .. 2008 Summer Paralympics. 2008 Summer Paralympics. PR = Paralympic Record. WR = World Record