chapter 17 Flashcards

1
Q

speed

A

the skills and abilities needed to achieve high movement velocities

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2
Q

agility

A

the skills and abilites needed to explosively change movement velocities or modes

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3
Q

speed-endurance

A

the ability to maintain maximal movement velocities or repeatedly achieve maximal accelerations and velocities

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4
Q

special endurance

A

the ability to repeatedly perform maximal or near-maximal efforts in competition specific exericise:relief patterns (work:rest ratios)

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5
Q

2 qualities of competition specific exericise relief patterns

A

1: the metabolic power to executs specific techniques at the targeted effort level
2: the metabolic capacity to do so repetitively

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6
Q

force equation

A

mass x acceleration

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7
Q

impulse

A

the change in momentum resulting from a force

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8
Q

power

A

the rate of doing work the product of force and velocity

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9
Q

sprinting error: hands too wide

A

Cause: misunderstand of movement
Correction: place arms at shoulder width

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10
Q

sprinting error: not getting 90 degree of front leg

A

cause: hips too high or low
correction: adjusting hip height

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11
Q

sprinting error: too much weight distributed to arms

A

Cause: improper weight distribution
Correction: raising hips upward more than forward and straightening arms and distributing weight evenly

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12
Q

sprinting error: unnecessary tension in dorsal muscles

A

cause: misunderstanding of movement
correction: normal head alignment eyes focused on group

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13
Q

sprinting error: “jumped” first stride

A

cause: push off angle too high; upward thrust too steep
correction: increase forward lean, head alignment, accelerate leg

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14
Q

how can force be expressed

A

impulse and power (mass x acceleration)

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15
Q

the final movement velocity targeted when a mass is being accelerated

A

velocity specificity

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16
Q

what has a greater force lengthening or shortening?

A

lengthening

17
Q

muscle shortening depends on

A

1: contractility and exitability of neuromuscular system
2: muscle architecture
3: motor unit composition; cross bridge rates

18
Q

how to improve SSC

A
  1. skillful multijoint movements
  2. work/rest exercises
    plyometric and heavy reisiance training
19
Q

complex training

A

alternating SSC with heavy resistance

20
Q

what is postactivation potentiation

A

the phenomenon of complex training that enhaces the SSC

21
Q

which is untrainable: reactive ability of reaction time?

A

reaction time

22
Q

braking is during what movement

A

eccentric

23
Q

propulsion is during what movement

A

concentric

24
Q

starting position for sprinting

A

even distribution of body weight

front knee angle 90 degree and rear knee 110-130

25
Q

push-off sprint position

A

rear leg produces greater initial force

26
Q

head position sprinting

A

relaxed neutral position

27
Q

flight phase for sprinting

A

maximum velocity

28
Q

training objective for sprinting-minimize braking forces

A

plant food directly beneath the center of gravity

29
Q

training objective for sprinting emphasize brief groud touching to increase stride rate

A

high level of explosive strength

30
Q

training objective for sprinting emphasize training for hamstring

A

eccentric knee flexor strength

31
Q

goal of sprinting

A

to achieve high stride grequency and stride length with explosice push-off and minimal vertical impulse

32
Q

purpose of spring resistance

A

to improve explosice strength and stride length

33
Q

purpose of sprint assistance

A

improce stride rate, overspeed

34
Q

a long response is greaster thant ? ground contanct and a short response is less than ? ground contact

A

.25

35
Q

methods for speed-endurance development supramaximal training

A

I: greater than competition
D: less than competition

36
Q

methods for speed-endurance development maximal training

A

I: equal to or less than competition
D: equal to competition

37
Q

methods for speed-endurance development submaximal training

A

I: less than compeition
D: greater than compeition

38
Q

tertiary methods for speed and agility developmet

A

mobility strength and spreed endurance training