Exercising core muscles safely
Exercising core muscles without proper technique risks compressing the spine, CBC's Kim Brunhuber reports.
Focusing on thecore muscles that support the back is all the rage at gyms, but an expert is raising a red flag.
Both traditional sit-ups and planks risk compressing the spine, says Dr. Stuart McGill, a professor ofspine biomechanics at the University of Waterloo.
McGill showsa safer technique to CBC's Kim Brunhuber.