hurdles+over+the+years

=**__400m Hurdle Records Over The Years__**=



**Graph analysis**
The graph shows various records for 400m hurdles according to year and record (in seconds). There is a steady decrease in the amount of time we take - we seem to improve as the years progress. Hurdle racers have obviously improved techniques as the years go by, because of the steady decrease in time taken. The improvements made between 1908 and about 1935 seem to be very rapid. In this time period there was a decrease in time of around 5 seconds (26 years). Whereas between 1934 and 1992 (58 years) there was only a decrease of about 2 seconds. From this, it seems that we did most of our progression in the later years, as we perfect techniques, from then on, it was steady improvements.



Table analysis
Here you can see the same things as the graph - there were more records and a greater increase of speed earlier on in the century, as athletes perfected their technique. Towards the second half of the century, there have been less changes in speed, and less (obvious) technique improvements.