Movement System Impairments: Kinesiology

physical therapy diagnosis

regional pain secondary to impairments you measure in testing

components of the movement system

metabolic, endocrine, nervous, cardiovascular, pulmonary, integumentary, musculoskeletal

"base" of the movement system

musculoskeletal

"modulator" of the movement system

nervous

"support" the movement system

cardiopulmonary and metabolic

what are movement system syndromes?

orthopedic conditions that cause musculoskeletal pain

important considerations for orthopedic conditions/movement system syndromes

-movement direction or alignment (positional fault)
-associated movement impairments
-improvement with correction

how to treat MSI syndromes

1. identify movement direction that causes symptoms
2. correction, decreasing symptoms
3. corrections based on anatomy and kinesiology

treating MSI syndromes requires identification of the pain generating structure (T/F).

false

pathologies of the movement system can lead to adaptations such as...

-alteration in muscle length
-changes in muscle performance

what happens when a tissue undergoes physical stress -- positive responses

Wolf's Law & Davis' Law --> stress strain graph shifts to the right

what happens when a tissue undergoes physical stress -- negative responses

bone spurs, overuse injuries --> stress strain graph shifts to the left

path of instantaneous center of rotation (PICR)

a point about which a rigid body rotates about a given instant of time

what affects the PICR of a joint

-abnormal movement patterns
-muscle performance
-muscle length
-posture
-alignment
-physical activity
-neurological factors

muscle atrophy

-loss of contractile elements
-may occur secondary to prolonged immobilization, neurological pathology, etc
-MMTs test weak throughout range, pain free

muscle strain

-disruption of the z-lines and actin/myosin overlap
-occurs secondary to prolonged tension caused by excessive and/or prolonged load
-MMT is weak and painful

relative muscle stiffness

hypertrophy of muscle leads to increases in passive tension

MSI syndromes - scapular faults

-excessive scapular depression

-hand behind back with early scapular elevation

-insufficient scapular posterior tilting, abduction, and winging

-insufficient scapular upward rotation and elevation

-scap winging when reaching up

-shoulder elevation with early shrug and correction

MSI syndromes - humeral faults

-shoulder elevation with excessive anterior humeral glide with correction
-supine ER/IR AROM at 90 degrees abduction
-prone ER/IR AROM with lack of scapular control and correction
-excessive humeral IR and inadequate ER during active elevation