Not sit-ups, planks, or crunches: I do this simple Pilates exercise every single day to build a strong and stable core and work on my hip flexor mobility

While exercises like sit-ups and crunches work the rectus abdominis, or "six-pack" muscles, this simple-looking exercise ...
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6 barre exercises that'll leave you feeling the good kind of sore tomorrow

Barre workouts are ballet-inspired exercises like parallel thigh side taps and foldovers. These exercises are great for toning muscles throughout your body including in your core and back. You can ...
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Toe taps on a ball: The low-impact core move fitness experts swear by for a stronger midsection

This simple yet powerful stability exercise activates deep core muscles, protects your spine, and builds real functional strength without crunches.
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I did 50 shoulder taps every day for a month – and this is what it did to my core

From hollow holds to Copenhagen planks, we're always looking for ways to add new movements into our routine. As someone with especially weak abs – who can't seem to target them during workouts because ...