A simple, equipment-free movement that delivers powerful results for core strength, stability, and definition.

Our core is made up of four muscle groups that are essential to everyday movements, like walking and lifting. And when people think about core strengthening, crunches are often the first thing that ...

FITNESS SOCIAL MEDIA is a firehose of dumb workout advice—specifically for ab training. From five-minute core workouts to ...

How many crunches can you do — and how does that stack up with others your age? That was the question posed by "FOX & Friends" on Monday, when fitness expert Joseph David challenged hosts Brian ...