Unit 5 textbook study questions

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Biomedical Physio & Kines
BPK 143
Tony Leyland

KIN 143 UNIT 5Study Questions1Describe the four basic principles that should be adhered to if a person wishes to obtain optimal benefits from a weighttraining program1Overload Principle2Principle of Progressive Resistance 2 for 2 rule3Principle of Arrangement of Exercises Larger muscles first4Principle of Specificity2Compare advantages and disadvantages of isometric and isotonic strength training1Isometric1advantages1For injury recovery2Strengthening muscle at a certain point of the ROM2disadvantages1Does not improve movement that helps with sports2Strength gain only limited to that point in the ROM3Can increase blood pressure and cause extra work for heart4Does not make you powerful2Isotonic1Advantages1Will increase power2Natural movements we use everyday3Will improve athleticism4Improve ability to balance free weights2Disadvantages1Does not exercise evenly throughout the ROM2Easier once the weight is accelerated3Less safe3Why is the average man stronger than the average woman even when this strength is expressed as a ratio of weight lifted to body weight1Men have higher levels of testosterone so they put on more muscle mass when they weight train Testosterone also gives men a greater percentage of muscle mass than women4Distinguish between muscular strength and muscular endurance1Strength1How much force can be exerted in one instance2Endurance1How long can you continue exerting a given force5Describe the mechanisms that a muscle uses to vary the force of a muscle contraction from slight to maximal1Muscles use motor units to exert force One motor unit has a nerve that controls a given number of muscle fibers Firing more motor units will
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