Josh Olinick, DPT, MS, PRC has begun writing about the pelvic-calcaneal relationships seen in PRI. CLICK HERE to read the first segment of a three part series where he discusses the sagittal plane. Josh did a great job with this article and his illustrations help differentiate what is occurring in the right foot vs. left foot in a Left AIC patterned individual. Stay tuned for part two (frontal plane) and three (transverse plane) of this pelvic-calcaneal relationship series!