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Health, Medicine, Nursing
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English (U.S.)
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Topic:
Training Programs for Bodybuilders
Essay Instructions:
Describe the sliding filament theory, the size principle of motor unit recruitment, and the all or none theory? When training a bodybuilder, why is an understanding of these three principles necessary and how can they be applied when designing training programs for bodybuilders?
Essay Sample Content Preview:
Training Programs for Bodybuilders
Three major principles are applied when designing bodybuilders’ training programs. The sliding filament theory explains the mechanism of muscle contraction whereby myosin filaments slide with actin filaments while maintaining a constant distance between them. Actin and myosin are synergistically involved proteins providing the energy needed for muscle contraction. The principle of motor unit recruitment is the fact that the involvement of the motor units in muscle contraction is done in a well-established order according to their sizes. Those requiring little energy are recruited first and have small-diameter motor neurons. The motor units with larger diameters and requiring a lot of energy motor neurons are involved next.
For the motor unit, the result of its recruitment, which is mu...
Three major principles are applied when designing bodybuilders’ training programs. The sliding filament theory explains the mechanism of muscle contraction whereby myosin filaments slide with actin filaments while maintaining a constant distance between them. Actin and myosin are synergistically involved proteins providing the energy needed for muscle contraction. The principle of motor unit recruitment is the fact that the involvement of the motor units in muscle contraction is done in a well-established order according to their sizes. Those requiring little energy are recruited first and have small-diameter motor neurons. The motor units with larger diameters and requiring a lot of energy motor neurons are involved next.
For the motor unit, the result of its recruitment, which is mu...
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