This no-movement exercise is one of the most reliable ways to measure core endurance, posture control, and spinal ...

Core training has always been part of military PT and fitness testing. From crunches to sit-ups, flutter kicks, leg tucks and plank poses, the U.S. military uses many exercises to test core strength.

How is your core strength? It's an essential part of staying healthy, so health and fitness expert Beth Oliver joined us to take us through a short test and show us how to improve it. Building a ...