The exercise is a variation of an ab crunch, where one leg flexes while the other extends. At the same time, there is rotation at the lumbar spine. ‘This creates a challenge for the core as ...

Doing the same exercise every day (or even every week ... was with great enthusiasm that I took on the challenge of a variation on the standard crunch. And no ordinary variation, either.

Bicycle crunches are a great exercise for building ... L1 to L5. ‘This creates a challenge for the core as there are different muscle actions happening, which creates a torque (rotational ...

Who takes home the crown when it comes to core work’s two main players: planks (the ultimate game of mental challenge ... body a rest day after a big session the day before. Crunches are ...