Elastic stretch depends on
Give this one a try later!
• Optimal amount
• Individual tolerance
• Diagnosis
• Stage of tissue healing
• Chronicity
• Severity of contracture
• Density of contracture
• Patient's age
• Patient's lifestyle factors
Static orthoses
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, - Immobilize the joint that they cross and tend to the be most common
orthosis therapists are referred to for.
-Can support and position weak or paralyzed upper extremities and are
used to prevent contracture or other deformities.
-Provide a platform for other attachments, such as an outrigger system
Types of Stress
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Compression
• Forces pushing toward each other
Shear
• Forces parallel to surface
Tensile
• Forces pulling away from each other •
Bending and Torsion
STRESS=Force/area
The second‐class lever system
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EX: wheelbarrow or nutcracker where the load is in the middle.
- As with the middle figure the fulcrum would be the wheel and the force
would be the handles held by a person.
- Mechanical advantage is > 1.
Dynamic Orthoses
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• Optimal amount
• Individual tolerance
• Diagnosis
• Stage of tissue healing
• Chronicity
• Severity of contracture
• Density of contracture
• Patient's age
• Patient's lifestyle factors
Static orthoses
Give this one a try later!
, - Immobilize the joint that they cross and tend to the be most common
orthosis therapists are referred to for.
-Can support and position weak or paralyzed upper extremities and are
used to prevent contracture or other deformities.
-Provide a platform for other attachments, such as an outrigger system
Types of Stress
Give this one a try later!
Compression
• Forces pushing toward each other
Shear
• Forces parallel to surface
Tensile
• Forces pulling away from each other •
Bending and Torsion
STRESS=Force/area
The second‐class lever system
Give this one a try later!
EX: wheelbarrow or nutcracker where the load is in the middle.
- As with the middle figure the fulcrum would be the wheel and the force
would be the handles held by a person.
- Mechanical advantage is > 1.
Dynamic Orthoses
