KINE 1020 Lecture Notes - Lecture 11: Membrane Potential, Homeostasis, Sarcolemma
19 May 2016
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When muscle is continually stimulated, tension developed is reduces even when stimulation continues. Injury/damage & associated pain leading to impaired movement. Injury leading to a chronic disability, degeneration & loss of muscle. The inability to maintain the required power output which is related to a decline in force, velocity and power which is reversible. Inability/decreased ability to maintain power output resulting in force/velocity/power. Identified from central (brain/spinal cord) to peripheral (everything else) Completely subconscious, selects an optimal pace to preserve homeostasis by making adjustments to intensity during exercise in order to protect metabolic rate. Brain alerts you before your body that you"re tired but there can be progression if you"re motivated to work through this mental fatigue. Neuromuscular junction (nmj) ach transferred here may be reduced. Enzyme cholinderase (breaks down ach) may become hypoactive ( ) Not ideal membrane potential due to too much k+ **no biological evidence that nmj blockage is a problem though**
