Intervall Running

2012.05.28. Monday
Intervall running training. Time: 1'36"/400m. For now...:D
1 x 800m Rest: 400m jog
4 x 400m Rest: 200m jog
4 x 200m Rest:100m jog
and then
Upstairs running:
approx: 25 stairs
9-6-3 Rest 1m