Final Answer:
Intra-muscular co-ordination changes involve the precise interaction and synchronization of motor units within a muscle to produce controlled and efficient movements.
Step-by-step explanation:
Intra-muscular co-ordination changes refer to the intricate adjustments and synchronization occurring within a muscle during movement. This process involves the recruitment and activation of motor units, which are the basic functional units of muscles. Motor units consist of a motor neuron and the muscle fibers it innervates. The nervous system orchestrates the activation of these motor units to generate the appropriate force and contraction needed for a specific movement. The coordination of motor units is crucial for optimizing muscle function, ensuring smooth and precise control over movements.
During intra-muscular co-ordination changes, the nervous system refines the recruitment pattern of motor units based on the required force and precision of the movement. This involves the selective activation of motor units with varying sizes and contractile properties. The process is finely tuned to match the specific demands of the task at hand. Additionally, the rate at which motor units are recruited and fired influences the overall muscle contraction and, consequently, the movement produced. Efficient intra-muscular co-ordination ensures that the appropriate muscles are activated with the right timing and intensity, leading to effective and controlled motion.
In summary, intra-muscular co-ordination changes are integral to the optimization of muscle function during movement. The nervous system orchestrates the recruitment of motor units, considering factors such as force, precision, and timing. This intricate process ensures that muscles work together seamlessly, allowing for coordinated and purposeful motion.