When you ask a runner how a runner would go from a lesser speed, to say say a greater speed - such as 10km to 14km an hour - most runners/ people would say from lifting the knees, strength and power. Maybe in 100 or 200 metres, but in every other situation and distance, that's not true and it prevents so many runners from running with efficiency.
To be an efficient runner is to create movement naturally, having excellent movement efficiency and posture.
We often talk about natural movement and basically, a good runner will create movement by changing the angle between the ground and their body, remaining straight from head to toe and leaning from the ankles, which are in a sense the fulcrum and your body a lever.
MOVEMENT EFFICIENCY is to do less (use less energy and require less oxygen) but to go further or faster. Optimal running efficiency stems from, when you run, ensuring everything from the waist up is moving forwards and from the waist down, moving backwards - in combination with excellent posture and natural movement. The video discusses and displays ways to achieve this. Change your philosophies today and become an excellent runner overnight.