KNES 373 Lecture Notes - Lecture 32: Corticospinal Tract, Primary Motor Cortex, Performance-Enhancing Substance
12 Apr 2019
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Knes 373 lecture 32 neuromuscular physiology and central fatigue. Content: central nervous system, the neural control of movement, the action potential, fatigue and the neuromuscular system, caffeine as an ergogenic aid. The nervous system: the central nervous system (cns, brain, primary motor cortex, spinal tracts, corticospinal tract, descending (efferent) Ascending tracts: provides information to brain on proprioception, pain temperature, metabolic state and environment within muscles, afferents. Fatigue is defined as a failure to maintain the required or expected force. : rht edwards et al. (1977) Inability of the muscle to function as instructed. Then, we try to look at the muscle and determine if the fatigue is coming from there or if something else is causing the decline. Issues with brainless model: no room for psychological\cognitive factors, can you do long division whilst running hard, bigger hearts and aerobic capacity should = better performance, not always true (billat et al 2003, noakes 2012 for a review)
