Economical runners can continue at a given speed longer than inefficient striders, outdistancing them.
Sure enough, the heavier the people were, the tests showed, the harder they had to work to run at a given speed.
So when we walk or run, our bodies tend to choose a particular cadence, a combination of step length and step frequency, that allows us to move at any given speed with as little physiological effort as possible.
It is normally of no value to discover the speed of a given molecule in a gas at a given moment; it is, however, very valuable to know what fraction of the molecules possess a given speed.
And they should, most proponents add, because landing near the front of the foot will require less oxygen and effort and allow you to push harder at any given speed and ultimately run faster or longer.
These intsy adjustments suggest that our brains very likely contain huge libraries of preset paces, Dr. Donelan and his colleagues have concluded, of idealized, "physiologically efficient" step cadences for any given speed and condition.
And since the ions are expelled at ten times the velocity of a chemical-rocket exhaust, only a tenth as much material need be ejected to achieve a given speed.
This means that the cycle-24 CMEs are significantly wider for a given speed.
However, at a given speed, the frequencies decrease with an increase in power law index.
The variation of noise level at the given speed has been about 3 4 dBA.
Instead, the distances are converted to times by dividing the distances by the speed of the Bs; half the distance at a given speed takes half the time.
