just wanting to share this:
at the beginning of the semester in my kin143 class we performed a 1.5 mile running test (for the europeans, it's 6 laps on the track - 2400 meters).
back in january i ran it in 9 minutes and 45 seconds, which was way above the class average, but just OK by my standards.
today i ran it in 9 minutes 14 seconds, noting a 31 seconds improvement! also i felt i could have done much better as i sprinted last 200 meters flat out.
running is fantastic!