Session 10

Question 1

name the 3 phases of sit to stand.

Answer 1

• pre-extension
• extension
• transition phase

Question 2

weight shift anteriorly or forward (horizontal translation of body mass)

Answer 2

pre-extension (sit to stand)

Question 3

describe 6 aspects of analysis of movement of the pre-extension phase of sit to stand.

Answer 3

• head and trunk weight shift forward; hip flexion
• ankle dorsiflexion
• head/neck slight extension (“look ahead”)
• begin knee extension
• followed by hip extension
• thighs off seat

Question 4

extension of trunk and LEs into stance (vertical translation of body mass)

Answer 4

extension (sit to stand)

Question 5

name 4 aspects of analysis of movement of extension phase.

Answer 5

• strong muscle forces required to propel trunk and LEs into full upright stance
• COM is moving in and in transition; normal stability as head moves passed knees
• end point is stabilization in standing
• note: weight slightly forward over balls of feet (COM at S2)

Question 6

point when thighs come off surface

Answer 6

transition phase

Question 7

name 3 key observations of movement components in sit to stand.

Answer 7

• initiation - timing, direction
• execution - speed and direction, weight shift in proper sequence, movement is balanced
• termination - ability to center, COM is within BOS

Question 8

what is the one phase needed for stand to sit?

Answer 8

eccentric control

Question 9

descent into sitting

Answer 9

eccentric control (stand to sit)

Question 10

name 4 aspects of analysis of movement during eccentric control (stand to sit)

Answer 10

• COM is lowered and maintained with proper hip flexion and trunk extension (head/neck in slight extension)
• weight is still forward (watch posterior weight shift)
• watch “fear of falling” so pt. may rush or fall into seated surface
• use of UE to reach for arm rest or seat to assist with descent, when indicated.

Question 11

name 5 cognitive domain considerations during functional mobility.

Answer 11

• attentional capacity
• ability to sequence or follow multiple step directions
• level of awareness of disability
• ability to motor plan
• fear of falling

Question 12

name 1 perceptual domain consideration during functional mobility.

Answer 12

-left inattention or left neglect syndromes

Question 13

name 3 sensory limitations to consider during functional mobility.

Answer 13

• somatosensory functions
• vision
• audition