What absolute nonsense. Hill sprints combine with various other tecniques can lead to huge improvements in speed. That is why pro sprinters do them!!!!! I don't want to get into the technical reason exactly why but basically hills help to increase a particular phase of the movement which can be difficult to isolate. These are also widely used by footballer, rugby players to name only a few.Originally posted by mikey601
hill sprints are fine for building muscle mass, but
Besides which mass also has a correlation to strength, strength in certain muslces is also proportional to speed, hence why the likes of Linford Christie are very muscular.