The 400m is known as the "man-killer" of track athletics,
so you can only imagine how hard it is with 10 hurdles in the way!!
The event requires the ability to maintain near maximal speed for an entire
lap, which induces a high level of lactate (or lactic acid) in the body.
The winners of races are normally those athletes who have conditioned their bodies
to tolerate this toxic waste product through repeated repetitions in training.
