lesson plan 11-12 Flashcards

1
Q

what is kinesiology?

A

science of movement

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2
Q

what is biomechanics?

A

the application of mechanics to the living human body

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3
Q

which of the following describes ‘linear motion’?

  1. object progresses in a straight line with moving parts in the same direction
  2. rotational motion on a central axis
A
  1. object progresses in a straight line with moving parts in the same direction
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4
Q

define longitudinal muscle fiber alignment

A

fibres run parallel blending together with the tendon. they don’t generate much tension and make up most upper body extremities

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5
Q

what are example of longitudinal fibres?
( muscles and types )

A

parellel / fusiform
rhomboids / digastric / sternohyoid are some examples

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6
Q

what are the type of penniform fibres?

A

unipennate (extensor digitorum longus)
bipennate (rectus femoris)
multipennate (deltoid)

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7
Q

what is the major contributor to a particular movement, other muscles would be secondary agonist or assistant movers?

A

prime mover (agonist)

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8
Q

what is the action opposite to the agonist that does not mean that they are exerting tension when the agonist contracts?

A

antagonist movement

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9
Q

what is the voluntary fixation on isometric contraction of opposing muscle groups to ‘fix’ a joint in a position.

A

fixators

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10
Q

do fixators decrease circulation which slows healing and attempt to protect the injuries area or muscle by fixing its position?

A

yes

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11
Q

what is the two muscles which act together to produce a movement which neither could produce alone?

example: dorsiflexion by tib. anterior and extensor digitorum longs.

A

conjoint synergist

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12
Q

what is neutralizing / counteracting synergists?

A

when a muscle crosses more then one joint it may produce a desirable movement at one joint but often produces an undesirable movement at other joints it crosses.

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13
Q

what is the stabilizing of Proximal joints to help distal segments move effectively?

A

stabilizing synergist

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14
Q

what is the CONTRACTION of a muscle that is insufficient due to limitations of muscle length?

A

active insufficiency

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15
Q

what is the RANGE of motion insufficient due to limitations of muscle length?

A

passive insufficiency

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16
Q

which class lever is most common?

A

3

17
Q

what is the fulcrum?

A

fixed point or joint

18
Q

are fast levers stronger or weaker?

A

weaker then slow levers

19
Q

what is the middle force in first class levers?

A

fulcrum

20
Q

what is the middle force in second class levers?

A

load

21
Q

what is the third class middle force?

A

effort or force

22
Q

what is a pair of scissor an example of? (lever)

A

first class lever

23
Q

what is a hockey stick an example of? (lever)

A

third class lever

24
Q

what is a wheel barrow an example of? (lever)

A

second class lever

25
Q

give an example of a body lever for each class

A

first class:
gastrocs at the ankle

no second class

third class:
bicep curls

26
Q

what is the law of the body remaining at rest or in a state of uniform motion in a straight line until acted upon by an unbalanced or outside force?

A

newtons first law of inertia

27
Q

what is inertia?

A

property of matter that causes it to resist any change of motion in either speed or direction

28
Q

what is newtons second law of acceleration?

A

the acceleration of a body is proportional to the force imparted to it and inversely proportional to its mass
force/mass

29
Q

what is moment arm?

A

distance between the perpendicular line of force application to the axis of the lever

30
Q

what is resistance arm?

A

distance between the perpendicular of the line of resistance application to the axis of the lever

31
Q

when pushing a heavy box and the object pushes against the person or pulls down with equal force in opposite direction is an example of what newton law?

A

action reaction 3rd law

32
Q

a soccer ball is at the top of a field with no movement. a player kicks it towards the other side. what Law is this an example of?

A

inertia law one

33
Q

hitting a golf ball with a weight of 12lbs is an example of what law?

A

acceleration law two
hitting the ball is force, the weight is the mass

34
Q

muscles around the scapula stabilize allowing to act as a stable base while the muscles move the glenohumeral joint is an example of what?

A

stabilizing synergist

35
Q

normally finger flexion used when gripping results in unwanted wrist flexion which must be counteracted by wrist extensors to neutralize this undesirable movement is an example of what?

A

neutralizing or counteraction synergist