Chapter 17 Flashcards

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1
Q

Which of the following types of balance occurs when an individual seeks to maintain postural control within a stationary limit of stability but with a moving base of support?

A

Semi-dynamic balance

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2
Q

Which sense provides information to the central nervous system about where the body is in space?

A

Visual system

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3
Q

Competitive athletes who performed balance training exercises reduced the risk of which injury by 46%?

A

Ankle sprains

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4
Q

Which of the following best defines the base of support of the body?

A

The area beneath a person that consists of all points of contact between the body and the support surface

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5
Q

What is critical for personal trainers to ensure before working with a recently injured athlete?

A

The athlete has been cleared by a medical professional.

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6
Q

Which balance training exercise is part of the second stage of balance training that uses dynamic, eccentric, and concentric movement of the balance leg through a full range of motion?

A

Single-leg squat

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7
Q

Maintaining one’s balance while on a skateboard that is moving while the feet remain in a fixed position can be described as what type of balance?

A

Semi-dynamic balance

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8
Q

What is the proper lower-body progression for balance training when starting with a new client?

A

Two-leg stable, single-leg stable, two-leg unstable, single-leg unstable

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9
Q

Receptors involved with this sense are specifically responsible for determining angular accelerations of the head while bending over to pick something up off the ground.

A

Vestibular

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10
Q

Receptors involved with this sense are specifically responsible for determining foot position while standing on an unstable surface.

A

Somatosensation

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11
Q

What must be maintained when performing exercises in a proprioceptively enriched environment?

A

Correct technique

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12
Q

Asking a client to balance on an unstable surface while barefoot would challenge which system?

A

Somatosensory system

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13
Q

Which balance task would require significant use of the vestibular system?

A

Squatting on one limb with eyes closed

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14
Q

Which sense provides information about changes in pressure on the skin, muscle length, and joint angles?

A

Somatosensory system

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15
Q

Which three senses are involved in the balance system?

A

Visual, vestibular, and somatosensory systems

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16
Q

Stage 3 balance exercise should include what types of motion?

A

Hopping motions with a single-leg stance landing

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17
Q

What is an example of an external factor that may influence the risk of falling in older adults?

A

The environment

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18
Q

Asking a client to stand on a BOSU ball would provide a major challenge to what system?

A

Somatosensory

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19
Q

What is the term for a postural disturbance being added to a task in order to make the task more difficult?

A

Perturbation

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20
Q

The risk of which lower-extremity injury was decreased in female basketball athletes who participated in a 5-week balance training program that improved landing movement mechanics?

A

Anterior cruciate ligament injury

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21
Q

Performing a hop-training program on a firm surface would be an example of which type of balance?

A

Semi-dynamic balance

22
Q

In order to balance, someone must maintain what point within their base of support?

A

Center of gravity

23
Q

Asking a client to close their eyes during a balance exercise would challenge which system?

A

Visual system

24
Q

How could the personal trainer make the “single-leg throw and catch” balance exercise more difficult for the client?

A

Increasing the velocity of each throw

25
Q

Which of the following variations of a hop exercise would be the most difficult from a deceleration and balance standpoint?

A

Multiplanar single-leg box hop-down with stabilization

26
Q

Which of the following types of balance occurs when an individual seeks to maintain postural control in a stationary position?

A

Static balance

27
Q

Maintaining one’s balance while standing still on a single foot in contact with a firm surface can best be described as what type of balance?

A

Static balance

28
Q

Which surface would be the easiest for a new client starting a balance training program?

A

Firm surface

29
Q

Which term specifically describes motor function of muscles in the lower extremity?

A

Neuromuscular function

30
Q

Which surface would be the most challenging for a new client starting a balance training program?

A

BOSU ball

31
Q

If the client cannot reach their foot during a single-leg squat touchdown, which is the first modification that can be employed?

A

Reach to their knee

32
Q

Asking a client to turn their head side to side during a balance exercise would challenge which system?

A

Vestibular system

33
Q

Which of the following defines the limits of stability of the body?

A

The area within which an individual can move their center of gravity without changing the base of support

34
Q

Balance exercises used for introducing balance training should initially involve little joint motion and improve what type of contractions?

A

Reflexive (automatic) joint-stabilization contractions

35
Q

Which of the following defines the center of gravity of the body?

A

The approximate midpoint of the body

36
Q

Which of the following has been used specifically as part of a protocol to improve balance?

A

Biomechanical ankle platform system

37
Q

The center of gravity moves in which direction when the knees and hips are equally flexed bilaterally?

A

Inferiorly

38
Q

What is an example of the role of the Certified Personal Trainer in working on balance training with a client?

A

Prescribing progressive, appropriate balance training exercises with knowledge/awareness of the client’s medical history

39
Q

Which sense provides information about movement of the head in space?

A

Vestibular system

40
Q

What is shortest time period per day that balance training should be conducted 3 times per week for 4 weeks in order to improve both static and dynamic balance ability in children?

A

10 minutes

41
Q

What is the most important reason that a Certified Personal Trainer should make sure an older adult has been cleared by the medical provider to take part in a balance training program?

A

To ensure safety

42
Q

The addition of balance training to a strengthening program can enhance what?

A

Strength

43
Q

Which of the following types of balance occurs when an individual seeks to maintain the center of mass over an ever-changing limit of stability?

A

Dynamic balance

44
Q

It is most important to improve balance in this population to decrease their fear of falling.

A

Older individuals

45
Q

Maintaining one’s balance while running on an uneven surface can best be described as what type of balance?

A

Dynamic balance

46
Q

Improving this using balance training would most likely decrease the risk of injury.

A

Injury resistance

47
Q

During balance training, gluteal muscles should remain in which state to hold the body stable?

A

Isometrically contracted

48
Q

Which term describes the act of lightly pushing on a client’s shoulders when they are balancing on one foot so they can learn to maintain or recover balance?

A

Perturbation

49
Q

This term describes an unstable-but-controlled environment used to improve someone’s static, semi-dynamic, and dynamic balance.

A

Proprioceptively enriched

50
Q

When balancing, the knee of the balance leg should be in line with which structure?

A

The toes of the leg on which the participant is balancing