The curl-up is part of spine expert Stuart McGill’s 'Big Three', shown in research to increase core endurance without stressing the lumbar discs. 'The McGill Curl-Up teaches the core to brace without ...

WANT TO GET bigger and stronger without spending all your time in the gym? You'll need to learn how to train efficiently—and that means training with a plan. One of the simplest ways to do this is by ...