Criteria for Abnormal Pronation
Five criteria are used to determine whether pronation is 
abnormal.Unnecessary destructive compensatory motion occurs in 
the other planes of motion of the STJ.4
Causes of Abnormal Foot Mechanics
Three pathological situations contribute to abnormal foot 
mechanics: structural malalignment, muscle weakness or 
imbalance, and loss of structural integritySTJ pronation is more than the normal 4 to 6 degrees.4,27,36,75
2.3.4.5.