Posture

Question 1

Ideal posture

Answer 1

stable
maintains body mass over BOS
minimizes stress/strain on tissues both statically/dynamically
minimizes energy cost

Question 2

Normal posture

Answer 2

through lobe of ear, head slightly forward
cervical bodies
shoulder joint
midway through trunk
greater trochanter
slightly anterior to knee
slightly anterior to lateral malleolus

Question 3

Normal posture

Answer 3

external auditory meatus
odontoid process of axis
lumbar vertebral bodies
sacral promontory
posterior to center of hip joint
slightly anterior to knee
through calcaneocuboid joint

Question 4

BOS

Answer 4

body part in contact with the supporting surface & area between the supporting structure

Question 5

COG

Answer 5

point around which the mass of the body is equally distributed
anterior to S1-S2

Question 6

Normal spine curves

Answer 6

Slight lordosis of cervical/lumbar

Slight kyphosis of thoracic

Question 7

Principles of alignment, joints, and muscles

Answer 7

faulty alignment results in undue stress/strain on bones.joints, muscles

joint positions indicate which muscles appear elongated and which appear shortened

a relationship exists between alignment and muscle test findings if posture is habitual

muscle shortness brings muscle O and I closer together

adaptive shortening can develop in muscles that remain in a shorten condition

muscle weakness allows separation of the O & I of the muscle

stretch weakness can occur in one-joint muscles that remain in an elongated condition

Question 8

5 reasons of abnormal posture

Answer 8

1) Lack of flexibility or mobility?
2) Weakness?
3) Pain?
4) Built that way?
5) Habit?