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36.Every Thanksgiving, we are given a graphic view of the difference between slow twitch and fast twitch muscle fibers. Those who like to eat the turkey drumsticks, for example, are eating muscles which have plenty of a darkly-colored protein that is necessary for sustained activity. Typically, the dark meat is comprised of slow-twitch muscles, while the lighter meat has a greater percentage of fast twitch fibers. What is this darkly colored protein?
37.The average adult body contains about 5 liters of blood. This means that all of our blood is rotated through our body once every minute or so. The idea of “cardiac output” is an important concept in understanding this phenomenon. It is possible to calculate cardiac output by knowing which two values?
38.The benefits of using a stability ball as an exercise tool include strength, flexibility, and balance. What is an added benefit of this type of exercise?
39.The body requires large amounts of energy to perform vigorous physical activity. Which of these is NOT an energy system that helps contribute to the body’s total energy needs during exercise?
