400m S-L questions

[AthleticsCoach]

@Charlie_Francis

This concept was used by Gerrard Mach often in the GPP- ie 2 or 3 x [80m bound followed by 200m run followed by 50m running As]

I have done this session for the past 5-6 years and it is very effective. The only caveat is that the athlete needs to have developed competent bounding technique.