warm-up or strength session. Sure, there’s a place for sit-ups and crunches in workouts. But my favorite way to train the various core muscles is by doing two things: using functional movement ...

Our volunteers did this 4 times per week – alternating days. Following a single plank set to warm up, held for 20-30 seconds, the group completed 3 sets of each of the 6 main exercises.

Crunches aren’t just difficult to master ... suggests adding this one exercise to the start of each of your warm ups instead, and it won’t take you any longer than five minutes.

Crunches have been the go-to move for core ... a variety of ways—either as a standalone core workout, as part of a warm-up, or incorporated into strength training sessions.

JAMES LOWE suffered a back injury during the warm-up before Ireland’s crunch clash against France. The Leinster winger was ...