Posture

Question 1

static posture vs dynamic posture

Answer 1

static: at rest without anticipated mvmt
dynamic: in action with anticipation of action

Question 2

8 factors affecting posture

Answer 2

1. health
2. build
3. gender
4. strength, flexibility, endurance
5. kinesthetic awareness
6. personal habits
7. work demands
8. social/cultural tradition

Question 3

why can’t infants maintain upright position?

Answer 3

postural reaction still needs to be perfected

Question 4

upright standing posture is inherently _______ bc the body’s COG is situated _______ above a relatively ______ BOS

Answer 4

unstable; high; small

Question 5

spinal curvature shape in neonate

Answer 5

C - convex posteriorly

Question 6

what happens to spinal curvature when infant is able to lift head?

Answer 6

cervical curve reverses to be convex anteriorly

Question 7

what happens to spinal curvature when toddler is able to sit and stand?

Answer 7

lumbar curve reverses to be convex anteriorly

Question 8

4 curves of the spine + L/K?

Answer 8

1. cervical - lordosis
2. thoracic - kyphosis
3. lumbar - lordosis
4. sacral - kyphosis

Question 9

spinal ___________ is greatly reduced in elderly

Answer 9

flexibility

Question 10

what happens to the shape of spine as we age?

Answer 10

reverts back to C shape; cervical curve may increase to keep eyes gazing ahead

Question 11

2 parts of normal posture

Answer 11

1. LOG falls close to joint axes

2. minimal countertorques

Question 12

4 aspects of normal posture of ankle in sag plane

Answer 12

1. neutral position
2. LOG falls slightly ant to lat mal
3. DF moment
4. PF counteract

Question 13

3 aspects of normal posture of knee in sag plane

Answer 13

1. full ext (3-5º flexion)
2. LOG ant to knee AOR
3. extension moment

Question 14

4 aspects of normal posture of hip/pelvis in sag plane

Answer 14

1. hip in neutral
2. pelvis level
3. LOG passes posterior to axis of hip jt, thru greater troch
4. ext moment leading to post rotation of pelvis

Question 15

3 aspects of normal posture of LS and SI jts in sag plane

Answer 15

1. 30º anterior tilt of sacrum
2. LOG passes through body of L5, slightly ant to SIJ
3. slight ext moment at L5/S1, opposed by ant long lig

Question 16

3 aspects of normal posture of head in sag plane

Answer 16

1. LOG passes through ext aud meatus
2. slightly ant to axis of rotation for flex/ext
3. flexion moment, counteracted by ligamentum nuchae

Question 17

flexed knee posture causes (2)

Answer 17

1. hip flexion

2. ankle DF

Question 18

hyperextended knee posture causes (2)

Answer 18

1. stress on post capsule

2. ant fem condyles and tib plateaus subject to increased compression

Question 19

forward head posture causes (2)

Answer 19

1. inc lordotic curve

2. compression of post structures

Question 20

sway back posture causes (2)

Answer 20

1. post pelvic tilt

2. hyperextended hips/knees

Question 21

consistent lateral deviations of a series of vertebrae from the LOG

Answer 21

scoliosis

Question 22

how is scoliosis named?

Answer 22

according to direction of convexity and location of curve