Speed, Change Of Direction, Agility, And Running

Question 1

Speed

Answer 1

Skills and ability needed to achieve high velocity

Question 2

Change of direction

Answer 2

Skills and abilities needed to explosively change movement direction, velocities, or modes

Question 3

Agility

Answer 3

Ability to change direction, velocity, or mode in response to a stimulus

Question 4

Rate of force production

Answer 4

Development of maximal force in minimal time

Question 5

Impulse

Answer 5

Product of generated force and the time required for production

Question 6

What is the mathematical model that depicts the muscles in terms of springs which go through shortening and lengthening depending upon stages of running

Answer 6

Spring-mass model

Question 7

Running speed is usually a function of what

Answer 7

Stride length and stride frequency

Question 8

What are the two sub tasks of linear sprinting

Answer 8

Start and acceleration and maximum velocity

Question 9

What are the two phases characterized by both acceleration and maximum velocity

Answer 9

Flight phase and support phase

Question 10

Elite sprinter start angles

Answer 10

Front lower leg at 90 degrees, rear lower leg angle is around 133 degrees

Question 11

Early flight action

Answer 11

Eccentric; hip flexion and knee extension

Question 12

Early flight purpose

Answer 12

Decelerates backward rotation; of thigh and of leg/foot

Question 13

Mid flight action

Answer 13

Concentric; hip flexion Moving from eccentric knee extension to eccentric knee flexion

Question 14

Mid flight purpose

Answer 14

Accelerates thigh forward

Question 15

Late flight action

Answer 15

Concentric; hip extension eccentric; knee flexion

Question 16

Late flight purpose

Answer 16

Rotates thigh backward for foot contact and accelerates leg backward

Question 17

Early support action

Answer 17

Continued concentric hip extension; brief concentric knee flex then eccentric hip ext, and then eccentric PF

Question 18

Early support purpose

Answer 18

Minimizes braking effect of foot strike, absorbs landing shock, helps absorb shock

Question 19

Late support action

Answer 19

Eccentric hip flexion, concentric knee extension, concentric PF

Question 20

Late support purpose

Answer 20

Decelerates backward thigh rotation, propels center of gravity forward, aids in propulsion

Question 21

Factors to improve change of direction

Answer 21

Low center of mass, increased hip extension velocity, increased impulse in breaking and propulsion, increased knee flexion entering braking phase, minimize trunk angular displacement during deceleration, and increase lateral trunk tilt during 190degree turns

Question 22

Factors of perceptual cognitive ability

Answer 22

Visual scanning, anticipation, pattern recognition, knowledge of situation, decision making and accuracy, and reaction time

Question 23

Main training goals of agility

Answer 23

Enhanced perceptual cognitive ability in various scenarios, rapid braking, rapid acceleration towards new direction

Question 24

Strength training requirements for agility

Answer 24

Dynamic strength, concentric explosive strength, eccentric strength, reactive strength, multidirectional strength, perceptual-cognitive abilities

Question 25

Development strategies for speed

Answer 25

Focus on acceleration before focusing on max speed, short to long, incline sprinting, stride rate and then length

Question 26

Development strategies for agility

Answer 26

Begin with COD drills then and perceptual-cognitive drills with stimulus, progress to small-sided games