Types of Muscle Activation

Types of Muscle Activation - Types of Muscle Activation:...

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Types of Muscle Activation: Muscles can only contract, that is, they can only attempt to shorten when they are stimulated However, because of the nature of resistance a muscle activation may result in: o a shortening activation - concentric (considered positive activation). This occurs when the muscle turning force (torque) is greater than the resistance turning force. An example – from the anatomical position, elbow flexion against a barbell weight using the elbow flexors as agonists. o a static activation – isometric . This occurs when the muscle turning force (torque) is equal to the resistance turning force. In the case of an isometric activation, no movement of the joint occurs. an antagonist is acting some external force is acting o a lengthening activation - eccentric (considered negative activation). This occurs when the muscle turning force (torque) is less than the resistance turning force. An example – from the anatomical position, elbow extension against a barbell weight using the elbow flexors as agonists. The elbow
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This note was uploaded on 09/25/2010 for the course EXS 31757 taught by Professor Brennan during the Spring '10 term at Oakland University.

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Types of Muscle Activation - Types of Muscle Activation:...

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