aid in

Hello,

The earlier paragraphs of the text are referring to a certain type of running training. But, in the following sentence, I wonder if I am not misunderstanding the meaning of "aiding in".

The goal of this type of training is multifold. It requires the muscles incorporated to contract at such a fast pace as to be fully engaged, aiding in the neuromuscular component by placing a premium on nervous system coordination of the muscles involved in running at such a fast rate.

Is it that it is stimulating the neuromuscular system or making it participate or helping it?

From what I got out of it I say that the training helps improve neuromuscular coordination. Someone more knowledgeable than me in this field might give you a better idea.