programs of Shaheen and Kwalia and they mix short hill sprints with long intervals for "strength endurance."
For instance, Shaheen last June did 8 x 800m averaging 2:01 and between each repetition he did 4 x 60m short sprint uphill (2:00 rest after 800, 2:00 rest after each hill sprint).
Thanks for the reminder.
Renato's program for Kemboi did the same.
Renato -- thank you very much for sharing.