KAAP430 Chapter Notes - Chapter 10: Golgi Tendon Organ, Muscle Hypertrophy, Myocyte
21 Mar 2017
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Document Summary
Most responsive system in the body to repeated stimulation. Learning how to more effectively produce f & a maximal movement. Similar within men, women, older adults, and children when expressed as a % of initial strength. Ability to generate force depends on # of cbs within the sarcomeres. Depends on # of actin & myosin molecules. Increased weight-class is related to increased total muscle mass. Causes increased amount of total weight lifted. Strength gains may be achieved without structural changes in muscle but not without neural adaptations. Strength: property of the neuro-motor system explains strength gains that occur in the absence of hypertrophy. Better synchronization of motor units during a movement. Mus are generally recruited asynchronously: not engaged at the same instant. Contraction or relaxation of muscle depends on summation of many impulses received by given mu. Contract when excitatory impulses > inhibitory impulses > threshold.
