As a fitness editor, I’m no stranger to an ab challenge, but this seven-minute workout really challenged my midsection. I felt my deep abdominal muscles (the transverse abdominis) switch on almost ...

The L-sit is a demonstration of pure evil sent in the guise of an ab exercise. It builds core strength and tests your hips ...

It’s a common fitness dilemma: You’re banging out crunches and planks week after week but still not seeing the strength and ...