Motion Dynamics Flashcards
(39 cards)
Physiological Barrier
limit of active motion
Elastic Range
range between the physiologic and anatomic barrier (end of passive motion)
Anatomic Barrier
limit imposed by anatomic structure; the limit of PROM without breaking/straining/spraining anything
Restricitve Barrier
functional limit that abnormally diminishes the normal physiologic range (b/c of SD);
Coronal/Front/Lateral
bisects the body into front and back halves
Sagittal/Antero-posterior
bisects the body into right and left halves
Horizontal/Transverse
divides the body into superior and inferior halves
ROM Planes: Sagittal/AP
flexion, extension
ROM Planes: Frontal/Coronal
side-bending, abduction, adduction
ROM Planes: Horizontal/Transverse
rotation
Types of Synovial Joints
- Pivot Joint: C1-C2
- Ball and Socket Joint: hip joint
- Condyloid Joint: radius and carpal bones
- Plane Joint: between tarsal bones
- Saddle Joint: between trapezium and 1st metacarpal bone
- Hinge Joint: elbow
Components of Motion
- Direction: flexion, extension, sidebending, rotation
- Range: actual measurements in degrees
- Quality: smooth = normal, ratcheting (parkinsons disease), restricted = contracture or SD, exhibiting resistance to the motion induced (ex. Cerebral Palsy)
End Feel of ROM
- Elastic: like rubber band
- Abrupt: OA or hinge joint
- Hard: somatic dysfunction
- Empty: stops due to guarding (intentionally done by patient)
- Crisp: involuntary muscle guarding as in pinched nerve
Flexibility Definition
ROM in a joint or group of joints or the ability to move joints effectively through a complete ROM
Flexibility: Static
maximal ROM a joint can achieve with an externally applied force (occurs when holding at a barrier and stopping)
Flexibility: Dynamic
ROM an athlete can produce and speed at which they can produce it
Flexibility: Stiffness
reduced ROM of a joint or group of joints
Does Active or Passive ROM have the greatest range?
Passive
___ Spine displays the most motion
Cervical (C1-C7)
Functional Unit of Spine
two vertebrae, their associated disc, neurovascular, and other soft tissues
Coupled Motion
consistent association of a motion along or about one axis, with another motion about or along a second axis; the principle motion cannot be produced without the associated motion occurring as well
Linkage
- relationship of joint mechanics with surrounding structures
- by linking multiple structures together you will get increased ROM (ex. shoulder-spine, spine-hip/pelvis)
Ehler-Danlos Syndrome
- collagen dysfunction
- joint hypermobility
- stretchy skin
- distinct lack of ROM barrier
- diagnosed using Brighton Criteria – must have 4/9
Somatic Dysfunction
the impaired or altered function of related components of the somatic (bodywork) system including the skeletal, arthrodial, and myofascial structures, and their related vascular, lymphatic and neural elements