Feel the talon of the heel and sense the stacking of bone on bone as you line up your structure to bear the weight of your body with lightness, using as
little muscle activation as is needed to remain upright.
Not exact matches
It requires more
muscle activation because you have to stabilize a
little more.
For example, one study found a
little less than 70 % leg
muscle fiber
activation while running to exhaustion on a level treadmill and a bit more than 70 %
activation during exhaustive running up an inclined treadmill.
1Some
muscle fibers drop out when they fatigue, and other
muscle fibers are recruited so force output doesn't drop off, which means total
muscle activation over the course of a set may be the same with heavy and light loads, even if
activation at any given time point is higher with heavier loads 2 It's a
little more complicated than that, if you care to dig deeper.
Indeed, this is underscore by the fact that some carefully controlled studies have reported that substantial early phase strength gains occur in as
little as 5 days without changes in agonist
muscle activation as measured by EMG amplitudes (Holtermann et al. 2005).
Moreover, early phase strength gains can occur over as
little as 5 days without any changes in
muscle activation, as measured by EMG amplitudes (Holtermann et al. 2005), which suggests that either EMG is not able to measure the effect of changing
muscle activation that effectively, and / or that other factors are also involved.