Biomech CCSP Flashcards

1
Q

Power is the product of

A

force and velocity

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2
Q

During free weight exercise, resistive torque varies with:

A

The horizontal distance from the weight to the body

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3
Q

T/F: Knee wraps can improve lifting performance

A

TRUE

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4
Q

The pivot point of a lever is called a

A

fulcrum

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5
Q

The degree to which a force tends to rotate an object about a specified fulcrum is called:

A

torque

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6
Q

The maximal force that a muscle can generate at a specified velocity is called:

A

strength

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7
Q

work =

A

force x distance

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8
Q

T/F: Most force is generated around the resting length

A

TRUE

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9
Q

The muscle that exhibits unipennate pennation

A

tibialis posterior

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10
Q

The muscle that exhibits bipennate pennation

A

rectus femoris

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11
Q

The muscle that exhibits multipennate pennation

A

deltoid

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12
Q

The muscle that exhibits fusiform pennation

A

biceps brachii

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13
Q

The muscular growth that occurs from resistance training is called?

A

hypertrophy

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14
Q

Hypertrophy of a muscle is primarily the result of which of the following: increased cross section of the muscle, increased muscle cell numbers, increased muscle cell hydration, thickening of the connective tissue?

A

Increased cross section of the muscle

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15
Q

Type Iia fibers are:

A

fast oxidative glycolitic fibers

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16
Q

The exercise intensity at which blood lacte begins to accumulate above baseline consideration is called:

A

lactate threshold

17
Q

When walking the gait cycle lasts?

A

1

18
Q

T/F: The heel lift occurs during the stance phase.

A

TRUE

19
Q

T/F: Forefoot varus is less common that forefoot valgus?

A

TRUE

20
Q

T/F: Approximately 50% of ball speed (overhand throw) is generated from forward step and body rotation

A

TRUE

21
Q

During the _____ phase the shoulder is abducted to 90 degrees externally rotated.

A

windup/cocking

22
Q

The primary muscles in early acceleration that influence the humerus are:

A

pectoralis major and deltoid

23
Q

The most common lever arm found in humans is class ____ lever.

A

3

24
Q

The angle at which a muscle has significant weakness is called the ______.

A

sticking point