Sit to Stand

Question 1

Sit to stand

Phases

Answer 1

Anterior weight shift: initial position to max trunk lean
Weight acceptance: max trunk lean to lift off
Extension: lift off to fully upright

Question 2

Sit to stand Ant Wt Shift

OBJECTIVES

Answer 2

COM forward

Question 3

Sit to stand Ant Wt Shift

CRIT EVENTS

Answer 3

Fwd trunk lean (neutral spine)

Question 4

sit to stand Ant Wt Shift

MUSCLE

Answer 4

Back EXT (ecc)
no LE muscle

Question 5

Sit to stand Wt Acceptance

OBJECTIVES

Answer 5

Transfer wt from chair to feet

WB Stabil: hip and trunk

Question 6

Sit to stand Wt Acceptance

CRIT EVENTS

Answer 6

Lift butt off chair- hip/knee extension
Neutral hip-frontal plane
Ankle DF
Maintain fwd trunk- neutral spine

Question 7

Sit to stand Wt Acceptance

MUSCLE

Answer 7

Hip:
EXT (con)
ABD (iso)

Knee:
EXT (con)

Ankle:
PF (eccen)

Trunk:
EXT (iso)

Question 8

Sit to Stand Extension

OBJECTIVES

Answer 8

WB Stabil: hip/trunk

Elevate COM

Question 9

Sit to stand Extension

CRIT EVENTS

Answer 9

Simultaneous hip/knee extension
Neutral hip: frontal
Ankle DF-> neutral
Maintain trunk w/ neutral spin: from fwd to upright

Question 10

Sit to stand Extension

MUSCLE

Answer 10

Hip:
EXT (con)
ABD (iso)

Knee:
EXT (con)

Ankle:
Neutral via knee extension
Low PF activity (con)

Trunk:
EXT (iso)

Question 11

Stand to sit

Phases

Answer 11

Folding: fully upright to max trunk lean
WT transfer: max trunk lean to chair contact
Post wt shift: chair contact to sitting upright

Question 12

Stand to sit Folding

OBJECTIVES

Answer 12

WB Stabil trunk/hip

Lower COM

Question 13

Stand to sit Folding

CRIT EVENT

Answer 13

Simultanous hip/knee flexion
Neutral hip- frontal
Ankle DF
Fwd trunk w/ neutral spine

Question 14

Stand to sit Folding

MUSCLE

Answer 14

Hip:
EXT (ecc)
ABD (iso)

Knee:
EXT (ecc)

Ankle:
PF (ecc)

Trunk:
EXT (iso)

Question 15

Stand to sit WT Transfer

OBJECTIVES

Answer 15

Transfer wt from feet to chair

WB Stability: hip/trunk

Question 16

Stand to sit Wt Transfer

CRIT EVENTS

Answer 16

Reach butt to chair through hip flexion
Knee flexion
Ankle Df to less DF
Neutral hip- frontal plane
Maintain fwd trunk w/ neutral spine

Question 17

Stand to sit Wt Transfer

MUSCLE

Answer 17

Hip:
EXT (eccen)
ABD (iso)

Knee:
EXT (eccen)

Ankle:
DF (eccen)

Trunk:
Back EXT (iso)

Question 18

Stand to sit Post Wt Shift

OBJECTIVES

Answer 18

Transfer COM back from feet to pelvis

Question 19

Stand to sit Post Wt Shift

CRIT EVENTS

Answer 19

Backward trunk lean- neutral spine

Question 20

Stand to sit Post Wt Shift

MUSCLE

Answer 20

Trunk:
Back EXT (con)

Question 21

What accounts for diff in amount of lean?

Answer 21

How much ant weight shift- if doesnt rach feet butt further back in chair

Want patients to work in range capable of- move table up or down

Question 22

Patient Considerations

Answer 22

Initial spine position- flexion w/ post pelv tilt

Won’t meet COM foward objective if move via spine flex and PPT