Motion Dynamics Flashcards
Linkage
Relationship of joint mechanics with surrounding structures
Get increased ROM
ROM is Sagittal (AP) Plane
Flexion and Extension
ROM in a Frontal (Coronal) Plane
Side bending
ROM in a Horizontal (Transverse) Plane
Rotation
3 types of joints
Fibrous - skull articulation
Cartilaginous - discs between vertebrae
Synovial - 6 types - extremities
3 characteristics of ROM and motion
Direction: Flexion, Extension, side bending, rotation
Range: actual measurement in degrees
Quality: smooth, ratcheting, restricted, exhibiting resistance to the motion induced
Elastic
Like a rubber band
Abrupt
Osteoarthritis or hinge joint
Hard
Somatic dysfunction
Empty
Stops due to guarding (patient doesn’t allow the motion due to pain)
Guarding
Patient stops movement and doesn’t allow due to pain
Crisp
Involuntary muscle guarding as in pinched nerve
Flexibility
ROM in a joint or group of joints or the ability to move joints effectively through a complete the rang of motion
Static Flexibility
Maximal ROM a joint can achieve with an externally applied force
Dynamic Flexibility
ROM an athlete can produce and speed at which they can produce it
Stiffness flexibility
Reduced ROM of a joint or group of joints
Functional Unit of the Spine
Two vertebrae, their associated disc, neurovascular, and other soft tissues
Coupled motion
Consistent association of a motion along about on axis, with another motion about or along a second axis
The principle motion cannot be produced without the associated motion aoccuring as well
Ipsilateral
Same side
Contralateral
Opposite side
