I'm all for crunches, sit-ups, and planks if you want them, but there are other ways to build a strong core that don't ...

You've been focused on a narrow definition of strength for too long. Diversify your training for better results with this program.

You've been focused on a narrow definition of strength for too long. Diversify your training for better results with this program.

Core-focused exercises for lower abs including crunches, planks, and twists.

You've been focused on a narrow definition of strength for too long. Diversify your training for better results with this 8-week programme.

CSCS expert shares 4 bed exercises that restore muscle tone after 55—no gym, no equipment. Start strong before you even stand up.

A certified trainer shares 5 standing exercises that restore glute strength after 60 — no squats required, less knee strain, faster results.

Get the little details right with this expert step-by-step guide ...