Chapter 10 - Springs Flashcards
1
Q
What is a spring?
A
rapid displacement of the centre of mass
2
Q
What are the three springing fundamentals?
A
- powerful muscles in take off limgs
- A rigid (tight) body
- use of non-support limb to increase force
3
Q
what type of activities are best for developing power?
A
plyometric (in legs and arms)
4
Q
what is power a combination of ?
A
speed and strength
5
Q
What type of contraction is used for a rigid body?
A
isometric
6
Q
Why must the body be rigid in a spring?
A
if the body is not rigid the generated force will be absorbed by the body (no transfer of motion)
7
Q
how do you increase spring force with your arms when jumping?
A
swing arms up to make the body heavier and swinging them down will make you lighter
