Chapter 18 Flashcards

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1
Q

During what phase of the stretch-shortening cycle is stored elastic energy converted to explosive force production?

A

Amortization

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2
Q

What is the most important thing for a client to focus on when they are new to plyometric training?

A

Proper technique

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3
Q

Why does a shorter amortization phase lead to more effective plyometric movement?

A

It causes stored elastic energy to be used more efficiently.

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4
Q

If a client is having trouble maintaining form during a tuck jump exercise, what type of regression should be applied?

A

Adding a stabilization pause between reps

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5
Q

What exercise equipment should clients always use when performing plyometric training, due to its high-impact nature?

A

Supportive shoes

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6
Q

What type of movements should be used before progressing to single-foot plyometric exercises?

A

Dual-foot drills

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7
Q

If the concentric phase of a plyometric exercise doesn’t use all the stored elastic energy from the eccentric phase, what occurs?

A

The unused energy is dissipated as heat.

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8
Q

Shorter reaction times during amortization may help reduce which of the following?

A

Tissue overload

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9
Q

Training the eccentric phase of plyometric movements with a new client will help them improve which of the following?

A

Landing mechanics

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10
Q

Which of these approaches is best in terms of safety and performance when using the box jump-up exercise with clients?

A

Choosing a box height in line with their capabilities

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11
Q

Why is a jump-down exercise considered more advanced than a jump-up exercise?

A

Jumping down challenges landing mechanics.

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12
Q

Which of the following should be considered when determining if a client is ready to undertake plyometric training?

A

Injury history

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13
Q

What is a regression for the box jump-up with stabilization?

A

Squat jump with stabilization

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14
Q

How does the stretch-shortening cycle improve concentric force production?

A

It builds up elastic energy during the eccentric phase, preloading the muscle.

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15
Q

What is a key technique consideration during the squat jump with stabilization?

A

Keeping the knees in line with the toes

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16
Q

What is the physical action in the body during the eccentric phase of the stretch-shortening cycle?

A

Stretching of the agonist muscle

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17
Q

Why is it important for clients to learn how to accelerate, decelerate, and stabilize in all planes of motion?

A

Injuries often occur when rotating or moving laterally.

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18
Q

When progressing a client to more-dynamic plyometric exercises, what is the first element that should be increased?

A

Stabilization, form, and mechanics during landing

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19
Q

What phase of plyometric movement is also referred to as the electromechanical delay?

A

Amortization

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20
Q

What type of muscle contraction occurs between landing and jumping during plyometric training?

A

Isometric

21
Q

Which of the following does plyometric training help increase

A

Motor unit recruitment

22
Q

What concept allows a person to jump higher during plyometric exercises?

A

Eccentric loading

23
Q

What is the best type of plyometric exercise for a beginner client?

A

Small jumps

24
Q

Reactive training is another common name for which type of exercise?

A

Plyometric training

25
Q

What type of movement happens during the concentric phase of plyometric exercise?

A

Jump

26
Q

What is defined as the force imparted by the ground on the body when a body segment makes contact with it?

A

Ground reaction force

27
Q

In what phase of plyometric exercise does preloading or stretching of the agonist muscle occur?

A

Eccentric

28
Q

What is the sufficient recovery time that is generally needed between plyometric exercises during a workout?

A

60 to 120 seconds

29
Q

Which of these is considered the most advanced plyometric exercise?

A

Depth jumps

30
Q

What does optimal reactive performance of any activity depend on?

A

Speed of force generation

31
Q

What is defined as the number of foot contacts, throws, or catches occurring during a plyometric exercise session?

A

Volume

32
Q

According to the integrated performance paradigm, which of the following is a requirement for the safe control of movement during plyometrics?

A

Neuromuscular stabilization

33
Q

What is the best next progression for a client who can properly perform the power step-up exercise?

A

Ice skaters

34
Q

What is the complete transition from eccentric to concentric muscle actions known as?

A

Stretch-shortening cycle

35
Q

What does the eccentric phase of a plyometric movement accomplish?

A

Deceleration

36
Q

Other than age, training history, and injury history, what screening tool is most beneficial in assessing whether a client is ready for plyometric training?

A

Movement assessments

37
Q

What are ground reaction forces?

A

Forces imparted on the body when it contacts the ground after jumping

38
Q

What is a progression for the box jump-down with stabilization?

A

Multiplanar jump with stabilization

39
Q

What must be sufficient in order to prevent overtraining and injury during a plyometric training regimen?

A

Recovery

40
Q

What variable of plyometric training is determined by the client’s fitness level, current training program, training history, injury history, and training goals?

A

Training frequency

41
Q

What plyometric exercise variable is defined as the distance covered and amount of effort applied by the muscles?

A

Intensity

42
Q

What is a key characteristic of plyometric exercise?

A

A faster tempo, similar to daily life

43
Q

What is the correct order of the phases of plyometric exercise?

A

Eccentric loading, amortization, concentric unloading

44
Q

Why are plyometrics best performed on grass playing fields, basketball courts, or tartan tracks?

A

The surfaces are more stable, which helps reduce injury risk.

45
Q

What is plyometric training also known as?

A

Reactive training

46
Q

Which of the following is the most highly progressed plyometric exercise?

A

Transverse plane box jump-down

47
Q

What is the most important reason not to allow the knee to cave inward during a lunge jump exercise?

A

It causes stress to the connective tissues.

48
Q

What is the recommended recovery time between bouts of plyometric training for novice clients?

A

48 to 72 hours

49
Q

What is defined as the ability to generate force as quickly as possible?

A

rate of force production