Stroke Economy (EC) is generally defined as the energy demand for a certain speed and is usually achieved by measuring oxygen consumption at a given speed. Even taking body mass into consideration, runners with better running economy use less oxygen than those with poorer running economy at the same speed.
What then influences the racing economy?
- Metabolic adaptations within muscle, such as increasing the number of mitochondria and oxidative enzymes.
- Ability to store and then release elastic energy in muscles and tendons.
- Efficient running technique.
But how can we have a positive impact on these factors?
To promote metabolic adaptations inside the muscle, there aren't many secrets, you have to train. It also seems that training at altitude causes more metabolic adaptations.
To improve the elastic component of muscle, training at high speed and plyometrics are recommended.
Finally, as regards the technique of racing, minimizing the braking phase necessarily leads to an improvement in the level of economy of travel. On the other hand, in a recent study, the researchers question the recommendation to minimize center-of-mass oscillation.
To be continued…
Hello Daniel,
Is it possible to have more precision on "the researchers question the recommendation to minimize the oscillation of the center of mass"?
I read the article in the link but I did not understand ...
Johann
Hi Johann,
I will write an article on this soon to translate the article into French ... to be continued 🙂
Hello Daniel,
Why complicate life with their methodology if we want to measure the oscillation of the center of gravity?
The study seems to indicate that the ground contact time should be reduced.
"It appears that optimal execution of stride angle allows runners to
minimize contact time during ground contact, thereby facilitating a
better RE "
What are the important factors to reduce this time? For example, can the place where the loading takes place influence this time?
In the quote, they seem to imply that it is the optimum angle that reduces ground contact time. Would the angle of the thrust be one of the factors that influence this time? Yes, according to them. Probably the place of loading too ...
the determining factors of the speed race ???