Balance

Question 1

Define balance

Answer 1

active control of the physical shape of the limbs to provide varying degrees of passive stability and muscular actions to provide compensating active stability for passive insufficiencies

Question 2

Define stability

Answer 2

The stability of a body to remain or return to its initial position following the application of force

Question 3

What does passive stability depend on

Answer 3

Weight, area of base, horizontal distance of the CoG to pivot point, height of CoG above base

Question 4

During unexpected movements what is balance maintained by

Answer 4

Elasticity, stretch reflexes, pre-programmed actions

Question 5

What are 4 reflex balance mechanisms

Answer 5

Ankle strategy, hip strategy, stepping, arm swings

Question 6

What does the Otolith organs do

Answer 6

sense linear acceleration of head

Question 7

What do the semi circular canals do

Answer 7

detect angular accelerations, liquid moves across hairs and deforms it