Asafa Powell - Extensor's Paradox - 3D kinematic visual

This is a 3D kinematic model of Asafa Powell running. The most critical element of the video is that the quad muscles are inactive (blue color) when the leg is in optimal position to attempt a push-off (red signifies the 'active' muscles). i.e. the supposedly active muscles are in fact inactive. Thus 'push off' is a visual illusion. This is the best visualization of the extensor's paradox of an actual runner that we've seen. Read more about the Extensor's Paradox http://bit.ly/zmtzWH

Category:

Sports

Tags:

• Pose Method
• Dr. Romanov
• Asafa Powell
• Extensor's Paradox
• Push-Off in running

[primeHeretic]

The hamstrings appear to be firing a bit later than I'd have thought.

[academiaduarte]

Mmm, so basically we use our muscles to not fall down, and not to propel.

[Peekingduck]

@saintkevinNL

Thanks for letting me know that.

Much appreciated. 

[saintkevinNL]

@Peekingduck the video comment pretty much sums it up.

[Peekingduck]

Wish I understood German...