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POAT exam 1 Guide Questions and Answers Graded A+
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Exam of 12 pages for the course POAT at POAT (POAT exam 1 Guide)
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POAT exam 1 Guideforce - answermass x acceleration
Torque - answerF x Moment Arm Length
pressure - answerforce/area
Linear Static equilibrium - answerRotational Static Equilibrium
Orthosis - answer"An externally applied device applied to a part of the body to correct
deformity, improve function, or relieve symptoms of a disease
Temporary, (a.k.a. off-the shelf, prefabs - answerAssess functional benefits/symptoms
Assess practical applications Short term uses ◦ Healing ◦ Function/training aid ◦
Contracture prevention Generic fit Usually less costly
Definitive orthosis - answerWhen permanent benefit is needed. When mechanically and
physiologically stable Custom fit More costly
Fixed Deformities - answerCan not be passively corrected.
Dynamic Deformities - answerResult from over- activity of muscle tendon groups but
when at rest are passively correctable. ◦Can also develop in adjacent joints in response
to coupling effects of deformities above or below
Corrective Control Systems Utilized by L.E. Orthoses: - answerGRF Control System(s)
3-Point (pressure) Control System(s)
Forces in Orthotic Design - answerEach plane and direction of motion under orthotic
control must have at least ONE 3-point loading system
Mechanical Goal(s) of Orthotic Interventions - answerApply forces of specific magnitude
at specific point(s) on a limb/trunk segment to achieve desired control.
. Orthotic forces are:? - answerdistributed over large surface areas to minimize local
skin and ST pressures. b) applied using larger moments arms possible/practical
biomechanical motion from anatomical axes are multiplanar? why is this diffcult? -
answer◦ Difficult to match ANY orthosis' mechanical axis with the normal dynamic
multiplanar anatomical axis
, Static - answerorthotic devices with no moveable joints incorporated into the design ◦
Block motion(s) ◦ Alter local pressures
Dynamic - answerOrthotic devices with moveable joints. ◦ Blocking/control of selected
motions ◦ Supporting/substituting for weak ms. ◦ Increase motion via traction
Well-designed shoes are - answerthe absolute foundation for most LE orthotic and
prosthetic interventions
EACH PART OF THE SHOE CAN? - answerENHANCE OR INTERFERE WITH LE
ORTHOTIC MANAGEMENT
"Stability Shoe" - answerSTJ medial control/protection
"Motion Control Shoe" - answermedial and lateral STJ + MTJ protection
"Neutral Shoe" - answercushioning/shock absorption, not designed for "control"
Three Tests to Determine any Shoe's Functional Stability Characteristics - answer1.
Torsional Rigidity 2. Heel Counter Stiffness/Rigidity 3. Flexion Stability
phases of rehabilation - answer1.Acute care
2.Pre-prosthetic (or orthotic) training
3.Basic prosthetic (or orthotic) training
4.Advanced functional skills training
1. acute care - answeruInitial management and protective healing
uApproximately 1-3 weeks after injury or amputation
uWound healing, edema management/control, pain control, infection prevention
uMedical management, community support and peer support
2. Pre-prosthetic (or orthotic) training - answeruApproximately 4-12 weeks after injury or
amputation
uContinued edema management and shaping (if needed), scar mobilization as
tolerated, pain management
uIncrease strength and ROM
3. Basic Prosthetic (or orthotic) training - answeruApproximately 6-12 weeks after injury
or amputation
uTimeline is lengthened when patients have comorbidities which delay wound healing
u
uBecome familiar with orthotic or prosthetic device, gain independence with skin care
and management, progressive increase with wearing tolerance, gain independent with
donning and doffing device, gain understand prosthetic components
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