Typical PRI “Left AIC”, “Right BC”, “Right TMCC” pattern
Left AIC pattern”, ”Right BC pattern”, ”Right TMCC...
There is a polyarticular muscular chain from rib seven to the lower extremity. This is called Anterior Inferior Chain (AIC). These polyarticular muscles influence on respiration and three-dimensional movement of the trunk, pelvis, and lower extremities.
Muscles: Diaphragm, Iliacus, Psoas, TFL, Vastus Lateralis, Biceps Femoris
The Left AIC pattern is the dominant pattern in human beings because of the asymmetrically designed body (the heart on the left, the liver on the right, the longer vagus nerve on the right, the bigger diaphragm on the right, and so on). Because of dominated left AIC pattern, we often see;
Overactive muscles: R Diaphragm, Iliacus, L Psoas, L TFL, R Vastus Lateralis, R Biceps Femoris