I asked fitness expert Dr. Femi Betiku to share more about the problems with a weak core for runners. A weak core means a ...

Some people work on their core because they’re hoping for a 6-pack or a flat tummy. But having a sturdy core provides you with much more than a toned look. A strong core — which includes the back, ...

Aim for a 45–90 second plank after 50. Learn how to test safely, spot form red flags, and build real core endurance.

In research published in the journal Physical Therapy in Sport, the goal was to explore and summarize the literature to determine the role of core stability as a risk factor in the development of ...

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You probably don’t think much about your core when you’re running—until something starts to hurt. Maybe it’s your back after a long run. Maybe your hips ache every time you increase your mileage. Or ...

Congratulations on being able to perform a 3-kilogram medicine ball rotation standing 1 footed on a Bosu ball while you read the Wall Street Journal. Clearly you as well as every other “informed” ...