Posture

Question 1

Define posture and what are the 2 types.

Answer 1

Posture is the position of the body either when stationary (static) or moving (dynamic).

Question 2

Why is it called a reference posture rather than an ideal posture?

Answer 2

There is no ideal posture. People are different and do different things and will therefore adopt different postures, but we need a posture upon which to compare others to describe what we see.

Question 3

What is the core principal behind the reference posture? Why is it what it is?

Answer 3

It is the posture that generally requires the least muscular work or passive support to maintain. The COG is over the BOS and net torque is minimized.

Question 4

Visual scan of posture check list

Answer 4

Head is centered
mastoid process level
shoulder level
iliac crest level
spinal curves maintained
thorax over pelvis over feet
feet hip width
symmetrical weight bearing

Question 5

Line of gravity in reference posture

Answer 5

External auditory meatus
shoulder joint
bodies of cerv and lumbar vertebrae
greater trochanter
ant to knee axis
ant to ankle axis

Question 6

Is the reference posture energy neutral?

Answer 6

No. it creates torques at individual joints unless it passes directly through the axis of rotation