Bicycle Crunches for Core Strength movement cornerJim HeafnerJanuary 25, 2017bicycles, abdominals, obliques, TrA, low back, deep neck flexors
The Hip Hinge Jim HeafnerJanuary 7, 2017lumbar spine, low back, hip, hip hinge, flexion, weights, disassociation
Hip vs. Low Back Flexion movement cornerJim HeafnerDecember 27, 2016hip, low back, lumbar spine, assessment
