Concentric

Concentric refers to circles, arcs, or other shapes that share the same center. The term is often used in the medical field to describe certain types of muscle contractions, where the muscle shortens as it contracts.

Concentric Muscle Contractions

In a concentric muscle contraction, the muscle shortens while generating force. This is typical of muscles that contract due to the sliding filament theory. During a concentric contraction, muscle fibers slide past each other, pulling the muscle's attachment points closer together.

Concentric vs Eccentric Contractions

Concentric contractions are the opposite of eccentric contractions. In an eccentric contraction, the muscle elongates while under tension due to an opposing force which is greater than the force generated by the muscle.

Applications in Exercise and Rehabilitation

Concentric contractions are used in both exercise and rehabilitation settings. In strength training, concentric contractions are used to lift weights, while eccentric contractions are used to lower them. In physical therapy, concentric contractions can be used to help patients regain strength and mobility after an injury or surgery.

See Also

• Isometric contractions
• Isotonic contractions
• Muscle contraction
• Strength training
• Physical therapy

References

Concentric Resources
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