Muscle Line of Action

Muscle Line of Action - It is important to know the line of...

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Muscle Line of Action A muscle’s Line of Action , is defined as a straight line from the proximal attachment to the distal attachment bisecting the sum of the force vectors. In the case of a muscle whose line of action is changed by the action of an anatomical pulley (for example, the deltoid line of action being changed by the muscle passing over the shoulder), the Line of Action lies in line with the tendon of attachment to the bone that is moving.
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Unformatted text preview: It is important to know the line of action relative to the joint center it helps to deduce possible muscle action in a movement However, other factors are also important including: presence or absence of resistance the starting position the direction of the movement the speed of the movement...
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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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Muscle Line of Action - It is important to know the line of...

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