Before discussing strength training exercises and guidelines, here is a quick review of muscle physiology. To generate force, muscles contract. This action requires ATP (see Chapter 4, page 31). Muscle fibers are classified according to which energy system they use to make ATP. The three types of skeletal muscle fibers are:
Everyone has all three muscle fiber types; however, genetics determine which fiber type is more abundant in each person. Physical training can lead to changes in the characteristics of the muscle fibers. For example, endurance training makes the Type IIa fiber act more like the slow-twitch, Type I fiber.
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How to properly fuel your body before and after your workouts, with the right nutrients and in the right way, for maximum results week after week! Find out why protein and hardwork is not enough...and why your results will suffer unless you add these other 5 foods to your muscle-building plan.