What is the Origin of Neural Drive Recruitment?

The term is foundational to neurophysiology and electromyography (EMG) studies, which measure the electrical activity of muscles and the nerves that supply them. It originated from research attempting to quantify the contribution of the nervous system to muscle force production. The concept underscores the brain's role as the ultimate controller of physical performance.

What is the Mechanism of Neural Drive Recruitment?

Increased neural drive results from the central nervous system's ability to activate a greater number of motor units simultaneously and increase the rate at which those motor units fire impulses. High-intensity training enhances this mechanism by lowering the activation threshold of high-threshold motor units. This central command function is sensitive to the influence of neurohormones and neurotransmitters, which modulate central arousal and the excitability of motor neurons.

Neural Drive Recruitment ∞ Area

Neural Drive Recruitment

Meaning

Neural Drive Recruitment is the measure of the efferent signal output from the central nervous system, specifically the motor cortex and spinal cord, directed toward the skeletal muscles during a voluntary contraction. It determines the quantity and activation frequency of the motor units engaged in a task. Maximizing this recruitment is a crucial factor in expressing high levels of muscular strength and power.