26-08-2014, 06:30 AM
400's are only 10 seconds per km faster pace than the 1k session
so 3.40 per k over 400m
the idea is to feel relaxed and not to push the session to find more speed
TheEd
so 3.40 per k over 400m
the idea is to feel relaxed and not to push the session to find more speed
TheEd