EXSC 530 Study Guide - Midterm Guide: High Intensity Training, Neural Adaptation, Myocyte
18 Feb 2018
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Muscular strength is the maximum force that a muscle/muscle group can generate and it"s calculated by 1rm. An increase in mass leads to an increase in strength, while a decrease in mass leads to a decrease in strength. After the age of 50, the body experiences sarcopenia (loss of muscle mass) accompanied by osteopenia (cid:523)loss in bmd(cid:524). There"s a loss/degeneration of motor units, as well as reorganization of motor units, which affects how many fibers we can recruit and therefore how much force we can produce. Describe the early and late phases of strength gains. Early phase- around weeks 4-6; see neural factors predominate for an increase in strength and power. Late phase- primary driver for increase in strength; occurs after 4-8 weeks of training; increase in muscle size via muscle protein accretion. Review the different types of motor units and their characteristics. Neuron body small and innervates small number of fibers (<300)
