'Position the seat height so upper back rests against upper back pad Grasp handles Lean forward crunching towards your knees (Keep upper back against back pad) and return'
Tags: Matrix , abdominal crunch , Setup & Movements
See also:'Position the seat height so upper back rests against upper back pad Grasp handles Lean forward crunching towards your knees (Keep upper back against back pad) and return'
Tags: Matrix , abdominal crunch , Setup & Movements
See also:
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