Resistance Exercise Flashcards
Muscle Strength
The maximum force that a muscle or muscle group can exert during a contraction.
Power
Is the rate of performing muscle contractions over a distance for a specific period of time.
Endurance
Ability of the muscle or muscle group to sustain contractions repeatedly or over a certain period of time.
Each muscle is covered by ______.
Endomysium.
A _____ is a bundle of muscle fibers.
Fascicle.
Fascicles are covered by _______.
Perimysium.
Fiber is a ______.
Cell.
Sliding Filament Theory
Actin and myosin slide together to allow muscle contraction.
Threads of protein called ______.
Myofibrils.
Each myofibril contain smaller threads called ________.
Myofilaments.
The larger the ___________ of a muscle the more tension is produced during a max contraction.
Cross Section Area (CSA).
Response to a quick simulation. Quick contraction or relaxation.
Muscle Twitch
Frequency of contraction/twitches increase allowing no relaxation between. Muscle contraction will increase smoothly up to a point of maximum strength.
Tetany
_____ its axon and all of the muscle fibers which it innervates.
A Motor Unit.
Increasing strength of a contraction is accomplished by increasing the number of activated motor units.
Multiple Motor Unit Summation.
