Eric  Goodman,Peter Park,Lance Armstrong
RADICALLY REDEFINE YOUR CORE,Foundation by Dr. Eric Goodman and Peter Park shifts the training focus from the front of your body to the back. By strengthening the full posterior chain and correcting poor movement patterns, you will maximize power, flexibility, and endurance and say goodbye to back pain.
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Foundation: Redefine Your Core, Conquer Back Pain, and Move with Confidence