Running Lecture

Question 1

What is the #1 cause of injury

Answer 1

previous history of injury

Question 2

Do we care more about symmetry or efficiency for each individual

Answer 2

effeciency

Question 3

What are the task related determinants for running

Answer 3

1. shock absorption
2. adequate pelvic/trunk alignment and stability
3. adequate limb alignment and stability
4. adequate foot alignment and stability

Question 4

What are the phases for running

Answer 4

right heel strike
midstance
toe off
double limb unsupported
left heel strike
mid stance
double limb unsupported
right heel strike

Question 5

stance phase is what percent of running cycle

Answer 5

40%

Question 6

swing phase is what percent of running cycle

Answer 6

30%

Question 7

float is what percent of running cycle

Answer 7

15% x2

Question 8

Where is the joint

Answer 8

kinematics

Question 9

what forces are the body under

Answer 9

kinetics

Question 10

Does the big toe matter?

Answer 10

yes we need about 30 degrees of extension for running form

Question 11

Impact peak is what and how much magnitude

Answer 11

1.5 times body weight immediate compression at 5% of running cycle

Question 12

When does impact peak increase

Answer 12

with downhill running

Question 13

Can impact peak change and what are we focused on for the graph

Answer 13

yes it can change we are worried about the slope (Rate) of the ground force reaction

Question 14

what is active peak and its magnitude and does it change much

Answer 14

2.5 times body weight and doesn’t change much

Question 15

When you are running and your foot first hits the ground what is the anterior to posterior GFR

Answer 15

breaking impulse posterior

Question 16

When you start to go into swing phase where is the anterior to posterior GFR

Answer 16

anterior propulsive impuse

Question 17

medial to lateral GFR is the most ______

Answer 17

variable

Question 18

What does internal torque mean?

Answer 18

result of the muscles generated forces responding to gravity

Question 19

What is the area under a power curve

Answer 19

mechanical work

Question 20

What is positive work

Answer 20

concentric

Question 21

What is negative work

Answer 21

eccentric

Question 22

What is the path of center of pressure

Answer 22

runners strike from posterior lateral to anterior medial

Question 23

When you are analyzing running gait what should you start with

Answer 23

side view

Question 24

What 7 can you observe from side view

Answer 24

foot strike pattern
tibial angle
knee flexion during stance
hip extension late stance
trunk lean
overstride
vertical displacement

Question 25

what are the different types of foot strike

Answer 25

1. forefoot 2. rearfoot 3. midfoot

Question 26

most runners use what time of foot strike? does it change with barefoot runners

Answer 26

mostly rearfoot change to forefoot when running barefoot

Question 27

The closer the foot is to the body the _____ the foot inclination angle

Answer 27

smaller

Question 28

Depending on how long the stride is you can have 3 different ______ angles

Answer 28

tibial angles extended vertical flexed

Question 29

We absorb _____ forces when the knee is bent during stance

Answer 29

more

Question 30

why might someone have decreased hip extension in late stance

Answer 30

1. decreased hip flexibility 2. decreased lumbar extension 3. decreased hip rom 4. decreased movement coordination

Question 31

If an individual has an upright posture during running they most likely have increased ________ joint stress

Answer 31

patellofemoral

Question 32

If an individual has increased vertical displacement they will have ______ GFR

Answer 32

increased stress

Question 33

When do you want peak hip flexion

Answer 33

during midswing

Question 34

From the posterior view you can evaluate

Answer 34

1. step width 2. heel eversion 3. foot progression angle 4. heel whip 5. knee window 6. pelvic drop

Question 35

which is more common medial or lateral heel whip

Answer 35

medial

Question 36

knee window can tell you about

Answer 36

knee valgus/ varus

Question 37

Pelvic drip can tell you about

Answer 37

hip abductions strength

Question 38

Arms are in response of what

Answer 38

the LE is doing

Question 39

Patellofemoral pain syndrome is common with

Answer 39

overstride upright trunk

Question 40

ITB syndrome is common with

Answer 40

narrow stance

Question 41

Medial tibial stress syndrome is common with

Answer 41

high vertical force overstride

Question 42

Is the prescription of shoe type evidence based?

Answer 42

no

Question 43

What should we worry about when it comes to shoe prescriptions

Answer 43

comfort promote the preferred movement path

Question 44

During toe off do we supinate or pronate

Answer 44

supinate