My fourth Yasso 800 --- Aug 31st 2006

On Thursday, i did my fourth Yasso 800. I warmed up for abt 7 mins or so, jogging along at 5.0 to 5.5 mph and then started my repeats of 4 mins at 7.5 mph (and jogs between at around 4.5 to 5 mph). I slowed the pace down slightly to about 7 mph for the last two repeats (was starting to feel bit tired) so could complete the slated 7 repeats for the week. Was totally exhausted. The next three speed workouts are going be quite tough. The next day, I felt pain in my right heel; maybe i was stamping my foot a bit too hard during the speed workout or the treadmill's cushioning system may not have been proper. I am hoping its nothing major and just a niggle.