contractions and movement Flashcards

1
Q

what are the 3 types of contractions

A

isometric, cincentric and eccentric

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2
Q

explain the movement of an isometric contraction

A

there is no movement generated - external torque is equal to internal torque

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3
Q

explain the movement of an concentric contraction

A

the muscle moment overcomes external forces

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4
Q

explain the movement of an eccentric contraction

A

The external moment is larger than the internal moment so the external forces are winning and overcoming the internal forces as the muscle might not be strong enough

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5
Q

what is a lever arm

A

it is the perpendicular distance between the axis of rotation and the application of forces

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6
Q

what is the equation for generation of movement

A

movement = force * lever arm (M=F*d)

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7
Q

give an example of a muscle belly

A

bicep tricep quads

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8
Q

what is the outer layer of the muscle belly called

A

epimysium

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9
Q

what does the muscle belly consist of

A

many fascicles

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10
Q

what are the fascicles enclosed by

A

the fascicles are eclosed by the perimysium

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11
Q

what is inside a singular fascicle

A

muscle fibers are within a fascicle

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12
Q

what are muscle fibers enclosed by

A

muscle fibers are enclosed by the endomysium

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13
Q

what is a lever arm

A

it is the perpendicular distance between the axis of rotation and the application of force.

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