Core strength testing has come a long way from the straight-legged, twisting sit-ups used before World War II. We've moved on to bent-knee sit-ups, to crunches and now to the plank pose or hanging ...

For better or worse, we are firmly headed into “get six-pack quick” season. It’s the fitness holy grail that launched a thousand Men’s Health covers, and this year, approaching a summer where most of ...

Answer: Full sit-ups are not the type of abdominal exercise I’d recommend. They can injure your back and aren’t truly effective, because you use muscles other than the abdominals to do most of the ...