Lecture 08: Running 01 Flashcards Preview

ANTH 324 Exam 02 > Lecture 08: Running 01 > Flashcards

Flashcards in Lecture 08: Running 01 Deck (25):
1

What is "sprinting?"

- It is ANAEROBIC
- Less than 5-6 m/s

2

What is "endurance running?"

- It is AEROBIC
- Greater than 5-6 m/s

3

What is a "typical jog?"

3-4 m/s

4

What are the 6 traits of running?

- Aerial phase (in air)
- COG in front of hip (falling)
- Often no heel strike
- Knee flexed at foot strike, then extends
- Knee flexed even more during swing
- opposite arm swing

5

Walking is considered _____ leg while running is considered ______ leg.

Stiff; Compliant

6

Why is running different than walking

- Running has Mass spring
- Walking has Inverted Pendulum

7

Are humans good runners? Y/N
If not, what traits makes humans not as good as some animals

No
- Slow
- Awkward
- Inefficient

8

Humans are the only primate to run over long periods of distance.
T/F

True

9

What are the 3 adaptations of running for humans?

1) Energetics
2) Stabilization
3) Forced Reduction

10

How much energy return is due to the Achilles Tendon?

32%

11

With regards to the Plantar Arch:
1) Walking is ____ stabilization
2) Running is ______ stabilization
3) which of the two is a spring

1) Active
2) Passive
3) Running

12

What is involved with running in regards to the Plantar Arch?

1) Mid-foot strike
2) Toe Strike

13

During Running:
Foot ____ by almost 1 cm. Testing shows the level of _____ returns _____% of the energy

Deforms; Deformation; 80

14

Total: about ___% energy saving during running

50

15

The key to stabilization is______

Gluteus Maximus

16

What is "inertial load?"

force that resists change in speed and velocity

17

The Gluteus Maximus is MOSTLY used in walking.
T/F

False, it is BARELY used in walking

18

The Gluteus Maximus is VERY IMPORTANT in RUNNING and FORWARD bending.
T/F

True

19

With regards to the Gluteus Maximus:
1) What is the job of the trunk stabilizer?
2) What is the job of the ABductor?

1) Extensor
2) Lateral Rotator

20

When do humans normally switch to running from walking?

2.5 seconds

21

What is the Inverted Pendulum effect?

- COM above the pivot point
- It is unstable
- Will fall without additional help

22

What does Arm swing do?

Reduces angular motion of the body
balance rotational motion produced during walking

23

What is Impact Force?

- Force that delivers a shock or high impact in a relatively short period of time
- Occurs when two things collide
- Collision results in one object falling onto another object

24

Impact force depends on the:

Foot Strike

25

What is the Mass Spring Effect?

Allows for temporary storage and release of elastic energy within leg tendons of leg during compression