nerve axon conduction velocity

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The velocity at which a nerve impulse is propagated along a neurone. It is affected by the diameter of the neurone, temperature, and the presence or absence of a myelin sheath. Myelinated fibres have a conduction velocity of 12–20 ms−1, while unmyelinated fibres conduct impulses at between 0.2–2 ms−1. The slow conduction velocity of nerves during cold weather may contribute to the risk of sports injuries because coordination is likely to be impaired. A proper warm-up would overcome this problem.

Subjects: Sports and Exercise Medicine.

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