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Biomech > Sit to Stand > Flashcards

Sit to Stand Flashcards

1
Q

Sit to stand

Phases

A

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

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2
Q

Sit to stand Ant Wt Shift

OBJECTIVES

A

COM forward

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3
Q

Sit to stand Ant Wt Shift

CRIT EVENTS

A

Fwd trunk lean (neutral spine)

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4
Q

sit to stand Ant Wt Shift

MUSCLE

A 
Back EXT (ecc)
no LE muscle
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5
Q

Sit to stand Wt Acceptance

OBJECTIVES

A

Transfer wt from chair to feet

WB Stabil: hip and trunk

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6
Q

Sit to stand Wt Acceptance

CRIT EVENTS

A

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

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7
Q

Sit to stand Wt Acceptance

MUSCLE

A

Hip:
EXT (con)
ABD (iso)

Knee:
EXT (con)

Ankle:
PF (eccen)

Trunk:
EXT (iso)

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8
Q

Sit to Stand Extension

OBJECTIVES

A

WB Stabil: hip/trunk

Elevate COM

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9
Q

Sit to stand Extension

CRIT EVENTS

A

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

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10
Q

Sit to stand Extension

MUSCLE

A

Hip:
EXT (con)
ABD (iso)

Knee:
EXT (con)

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

Trunk:
EXT (iso)

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11
Q

Stand to sit

Phases

A

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

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12
Q

Stand to sit Folding

OBJECTIVES

A

WB Stabil trunk/hip

Lower COM

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13
Q

Stand to sit Folding

CRIT EVENT

A

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

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14
Q

Stand to sit Folding

MUSCLE

A

Hip:
EXT (ecc)
ABD (iso)

Knee:
EXT (ecc)

Ankle:
PF (ecc)

Trunk:
EXT (iso)

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15
Q

Stand to sit WT Transfer

OBJECTIVES

A

Transfer wt from feet to chair

WB Stability: hip/trunk

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16
Q

Stand to sit Wt Transfer

CRIT EVENTS

A 
Reach butt to chair through hip flexion
Knee flexion
Ankle Df to less DF
Neutral hip- frontal plane
Maintain fwd trunk w/ neutral spine
17
Q

Stand to sit Wt Transfer

MUSCLE

A

Hip:
EXT (eccen)
ABD (iso)

Knee:
EXT (eccen)

Ankle:
DF (eccen)

Trunk:
Back EXT (iso)
18
Q

Stand to sit Post Wt Shift

OBJECTIVES

A

Transfer COM back from feet to pelvis

19
Q

Stand to sit Post Wt Shift

CRIT EVENTS

A

Backward trunk lean- neutral spine

20
Q

Stand to sit Post Wt Shift

MUSCLE

A 
Trunk:
Back EXT (con)
21
Q

What accounts for diff in amount of lean?

A

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

22
Q

Patient Considerations

A

Initial spine position- flexion w/ post pelv tilt

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

Biomech (7 decks)

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