The better predictor of increase in force of contraction, change in semg amplitude of spikes.
<h3>What is force?</h3>
A force in physics is an effect that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Given that in the question the better predictor of increase in force of contraction, change in semg amplitude of spikes or change in semg frequency of spikes.
The better predictor of increase in force of contraction, change in semg amplitude of spikes.
To learn more about force refer to the link:
brainly.com/question/13191643
#SPJ1