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Definition
| a single muscle cell; usually classified according to strength, speed of contraction, and energy source. |
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Definition
| small protein structures that make up muscle fibers |
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Definition
| an increase in the size of muscle fibers usually stimulated by muscular overload |
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Definition
| a decrease in the size of muscle fibers caused by inactivity |
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Definition
| an increase in the number of muscle fibers |
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Definition
| red muscle fibers that are fatigue resistant but have a slow contraction speed and a lower capacity for tension; usually used for endurance activities |
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Definition
| white muscle fibers that contract rapidly and forcefully but fatigue quickly; usually used for actions requiring strength and power |
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Definition
| the ability to exert force rapidly |
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Definition
| a motor nerve (that initiates movement) connected to one or more muscle fibers |
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Definition
| the improvement in the body’s ability to recruit motor units, brought about through strength training. |
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Definition
| a tough band of fibrous tissue that connects a muscle to a bone or other body part and transmits the force exerted by that muscle |
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Definition
| a tough band of tissue that connects the ends of bones to other bones in a joint |
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Definition
| tough, resilient tissue that acts as a cushion between the bones in a joint |
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Definition
| the principal male hormone, responsible for the development of secondary sex characteristics and important in increasing muscle size |
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Definition
| The maximum amount of resistance that can be moved a specific number of times |
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Definition
| The number of times an exercise can be performed during one set |
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Term
| Static (Isometric) Exercise |
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Definition
| Exercise involving a muscle contraction without a change in the muscle’s length |
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Term
| Dynamic (Isotonic) Exercise |
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Definition
| Exercise involving a muscle contraction with a change in the muscle’s length |
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Term
| Concentric Muscle Contraction |
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Definition
| A dynamic contraction in which the muscle gets shorter as it contracts |
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Term
| Eccentric Muscle Contraction |
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Definition
| A dynamic contraction in which the muscle lengthens as it contracts; also called a plyometric contraction |
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