Want an incredible body weight only workout to go along with your weekly hill sprint regimen? (jasonferruggia.com)
Personally I like to mix it up; when running, I sometimes jog around a park for a long period of time at low intensity, and sometimes I do hill sprints as a kind of interval training. (scoobysworkshop.com)
During each week of a training block — roughly 8 weeks, I include 1 hill sprint workout, 1 trackwork / speed interval, 1 tempo run, and one 1 LSD run. (scienceofrunning.com)