Saw some interesting videos on the Science of Running presented by Taiwanese Coach Hsu Kuo-Feng.
Happy Watching!
VIDEO 1 : ON THE BODY'S ENERGY SYSTEM
This video explains the aim and purposes of the 6 intensity level and 5 heart rates zone.
VIDEO 2 : ON CADENCE & VERTICAL OSCILLATION
This video explains running cadence, vertical oscillation and their relations between cadence, vertical oscillation and efficiency.
VIDEO 3 : ON GROUND CONTACT TIME
This video explains the impact of heel-strike and forefoot landing on the duration of ground contact time.
p/s - You can read up more at Coach Hsu Kuo-Feng's blog via http://rocky549.blogspot.tw/