PATHOMECHANICS

Question 1

when STJ is pronated, compression across the STJ is diminished

STJ pronation also decreases piling up of talus on the calcaneus in the frontal plane-decreases stability
-increases angulation between talus and calcaneus in the transverse plane-decreases stability

Answer 1

STJ pronators instability

Question 2

if the STJ is abnormally pronated during propulsive period, MTJ will also be pronated at the OMTJ and LMTJ during the propulsive period when it should be supinated for stability

Answer 2

MTJ pronatory instability

Question 3

motion outside the normal direction/plane of motion

STJ unstable to MTJ unstable to lesser tarsus unstable to entire foot unstable

forefoot hyper mobile during the latter part of midstance period and during propulsive period

Answer 3

forefoot hypermobility

Question 4

deviation of the STJ axis so that it is more parallel to the transverse plane and more perpendicular to the frontal plane; more frontal plane motion and less transverse plane motion

Answer 4

planal dominance

Question 5

what are the variables considered in pathomechanics?

Answer 5

STJ pronators instability
MTJ pronatory instability
forefoot hypermobility
planal dominance