Solns prob set#8

Solns prob set#8 - BIPN 108, Physiology of...

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BIPN 108, Physiology of Exercise--Solutions to Problem Set #8 Page 1 1.a. The goal of resistance training is to increase muscle strength maximally, whereas the goal of endurance training is to increase the ability of the body to continue exercising for long periods of time. b. Both types of training follow the same principles: overload, specificity, individuals differ, and reversibility. However the application of these principles to the two types of training leads to different kinds of activities. c. The overall strategy of resistance training is to work at 60-80% of the maximum load an individual muscle can move. Muscles typically are worked one at a time or in small groups around an individual joint. The intensity of effort should be sufficiently high that only a few repetitions are possible, and in this situation energy must be provided by ATP and phosphocreatine stores in the muscles. In contrast, in typical endurance training large parts of the body are worked at an intensity that can be maintained for long periods of time. This lower intensity of effort allows energy to be provided by oxidative metabolism. d. Resistance training selectively works the Type IIb (white, fast-twitch, glycolytic, rapidly fatiguing) fibers in the working muscle. This selection is carried out by the central nervous system, which selectively activates motor neurons in Type IIb motor units. In contrast,
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Solns prob set#8 - BIPN 108, Physiology of...

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