Posture Control

Question 1

System approach - repsonse to perturbations

Answer 1

Tilted on unstable surface
Direction specific response
Fine tuning

Question 2

System approach - postural strategies

Answer 2

Ankle, hip, stepping strategies

Question 3

System approach - musculoskeletal

Answer 3

UE rom - protective responses
LE ROM - postural strategies
Strength to resist gravity and enviro perturbations

Question 4

Vertical righting reaction

Answer 4

Orient head to vertical in various positions

• tilting from upright suspended
• prone as part of landau
• supine w/ chin tuck
• sidelying

Question 5

Rotational righting

Answer 5

Restore body parts to normal alignment following rotation of some body segment

Question 6

Protective reactions forward

Answer 6

(6-7mo)

move toward floor head first - arms ext and ab

Question 7

Equilibrium reaction

Answer 7

Observe counter movements of head, neck, trunk or extremities when COM is displaced

Generally opposite to the opposing force

Question 8

Protective reaction lateral

Answer 8

6-11

displaced from sitting

Question 9

Protective reaction backward

Answer 9

9-12 mo