What is neural activation?

Neural activation involves the firing sequences of motor neurons that control muscle contraction and movement. In the context of strength training, it refers to the optimal sequencing and engagement of motor neurons in the spine and brain. Skilled activities and power lifting, for instance, depend on the precise sequence of these neurons firing. This sequence optimizes strength and coordination without necessarily increasing muscle mass. Neurons in the spinal cord, termed lower motor neurons, typically handle routine movements, while upper motor neurons in the neocortex govern deliberate actions. Enhanced neural activation improves the effectiveness of the neuromuscular synapse, where neurotransmitters like acetylcholine are released to prompt muscle contractions. This synaptic efficiency is a critical aspect of strength gains observed in structured training regimens that focus on neural rather than muscular hypertrophy 1.