Chapter 7 - Human Movement Science Flashcards

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1
Q

Describe the Sagittal Plane

A
  1. Bisects body L & R
  2. Movement include: flexion & extension
  3. Exercise: Biceps curls, squats
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2
Q

Describe the Frontal Plane

A
  1. Bisect body front & Back
  2. Movement inc: Adduction/Abduction, lateral spine flexion, inversion/eversion of foot
  3. Exercise: Jumping Jacks, Side lunge
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3
Q

Describe the Transverse Plane

A
  1. Bisect body upper & lower (tabletop)
  2. movement inc: internal/external rotation, R+L rotation of head + trunk, Horizontal Add/Abduction
  3. Exercise: swinging bat/golf club
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4
Q

Question force velocity

Which of the following statements would be accurate with regard to muscle force and velocity during an eccentric muscle action?

A

As the contraction velocity increases the ability to develop force also increases

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5
Q

The anterior oblique subsystem (name muscles)

A

Adductor (inner) thigh muscles, obliques, and hip external rotators

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6
Q

Do concentric, eccentric and isometric muscle cards

A

Answers

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7
Q

What measurement is dependent upon the length of the lever arm and the angle between the force application and the lever arm?

A

Torque is a measurement (in Newton meters) of the amount of force that can cause an object to move (rotate) around an axis.

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8
Q

What is the scientific term that describes the nervous system’s role in the contract/relax relationship between agonists and antagonists?

A

Reciprocal inhibition

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9
Q

In what plane of movement do shoulder horizontal adduction and abduction occur?

A

Transverse

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10
Q

Performing a biceps curl with a dumbbell in the hand is an example of which type of lever?

A

A third-class lever

has the effort arm between the resistance arm and fulcrum; thus, the biceps curl is a classic example, as the fulcrum is at the elbow joint, the effort is the tendon attachment at the forearm, and the resistance arm is the load at the hand.

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11
Q

How should an eccentric muscle action be described?

A

The development of muscle tension during lengthening of the contractile tissue

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12
Q

Which muscle group works both eccentrically and concentrically in the sagittal plane during a squat?

A

Quadriceps

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13
Q

What is the anatomical term that describes something positioned above an identified reference point?

A

Superior

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14
Q

Which muscle is primarily targeted when performing a biceps curl exercise with the thumb up?

A

Brachioradialis

During a biceps curl, all of the elbow flexors are recruited; however, changing wrist and forearm position leads to preferential recruitment with the brachioradialis being targeted when curling with the thumb up.

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15
Q

The deep longitudinal subsystem includes which muscle groups? EDIT ME

A

Hamstrings and erector spinae

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16
Q

What anatomical term is used to describe something that is relatively closer to the midline of the body?

A

Medial

17
Q

What happens if the amortization phase of a plyometric exercise is prolonged?

A

Stored energy will dissipate, and the unloading phase will be less powerful

18
Q

In what plane of movement do shoulder horizontal adduction and abduction occur?

A

Transverse

19
Q

Movements that take place within a joint and are not visible to the human eye may be classified in what way?

A

Arthrokinematic

20
Q

What is an isokinetic muscle contraction?

A

A contraction that occurs when the speed of movement is fixed and the resistance varies with the force exerted

21
Q

How should the amortization phase of the stretch-shortening cycle be described?

A

The transition from eccentric loading to concentric unloading

22
Q

What is the concept used to describe the action of muscles that have the ability to contract automatically in anticipation of movement?

A

Feed forward

23
Q

Overactive hip flexors may lead to which of the following postural compensations?

A

Anterior tilting of the pelvis and an increased low-back arch

24
Q

Synergistic, antagonist etc do card

A

Make card in this