Recent content by tedjan

I have been working on a physics based mathematical model of a bipedal runner, not a walker, for several years. It uses two models; a spring mass model first developed by Blickhan in ‘89 and a similar swing leg model. Both models use RK4 algorithms controlled by Newton-Raphson drivers to solve...

Those are very interesting numbers. The last sentence is about 1 HP for 1 min. Thanks. I did have a problem with the link. I had better luck with: http://www.aerovelo.com/?s=athlete+power

Yes, Brian Allen powered the Gossamer Albatross across the Channel with about 400w. http://en.wikipedia.org/wiki/Gossamer_Albatross Typical values are stated in terms of 'mass' spicific power of watts/kg. That works out to about 3.5 w/kg for continuous specific power output. Short term...

Sorry to be out of touch on this post. I’ve been working in another problem area. Regarding the Bolt question the aerodynamic drag equation is very useful to estimating the drag. NASA has an excellent discussion at: http://wright.nasa.gov/airplane/smeaton.html Mr. Bolt’s velocity at 10...

I’ve been interested in finding out how much power in watts a runner can develop. There are actually two cases that I was interested in; one was for sprinting and the other was for running at a constant speed for an extended period of time, such as, for a 5K. The second one is a bit...

Looking for math/physics people interested in the running biomechanics Are there any other math/physics/engineering runners out there who are interested in collaborating on an effort to understand their own running performance by using a mathematical model known as the Spring Mass (SM) Model...

This is a very old problem. Unfortunately, I remember the answer, g/7, but I don't remember how you get it. It has an unusual solution. There a special substitution that you need to make for the mass, otherwise the problem is insoluble. You might try to research "raindrop problem" with Google.