Muscle Flashcards

1
Q

Fundamental unit of muscle fiber

A

Sarcomere

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2
Q

Benefit of pennate muscles

A

More fibers per given area= greater strength and force production

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3
Q

Fusiform muscles allow for

A

Greater rom

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4
Q

Force couple

A

2 or more muscles simultaneously produce s force in different linear directions but produce torque in the same direction

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5
Q

During the down phase of a squat, the glutes and quads are performing what type of contraction?

A

Eccentrically

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6
Q

Advantage of isometric contractions

A

Allows for contraction without moving through a full ROM

Useful for early post-op rehab

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7
Q

Advantage of isokinetic movement

A

Stability to adjust resistance throughout ROM

Accounts for stronger/weaker area

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8
Q

What type of movement causes more overall muscle damage?

A

Eccentric

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9
Q

Tone

A

Slight tension at all times

State of readiness

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10
Q

What tension comes from stretching

A

Passive tension

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11
Q

Active tension comes from

A

Contractile units

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12
Q

Ideal resting length allows for

A

Greatest number of crossbridges

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13
Q

How can you make a muscle produce a greater force

A

Putting it on a stretch prior to contracting

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14
Q

When a muscle is of insufficient length to permit full ROM, it is considered_________.

A

Passive insufficiency

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15
Q

Having insufficient power to contract further is considered___________.

A

Insufficient power

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16
Q

Max isometric force can indicate_______.

A

Peak strength

17
Q

In a concentric contraction, as velocity increases, will load increase or decrease?

A

Decrease!

18
Q

In an eccentric contraction as load decreases, what will happen to the velocity of contraction?

A

Decrease

19
Q

What is the relationship between force and time during a muscle contraction?

A

They are proportional

Increasing contraction time will increase max contraction