Forget crunches, planks, and sit-ups — I use this simple Pilates exercise to strengthen my core, lower back, glutes and shoulders, all while working on my stability and posture

Credit: I’ve been practicing Pilates for the past decade and credit it with keeping me injury-free as I’ve trained for six marathons and rebuilding my core and pelvic floor postpartum. Pilates ...
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It's not goodbye, planks — this one exercise is more effective at strengthening your deep core muscles (and whole body)

Skip out on standard planks in favor of one of my favorite abs alternatives — the banded plank bird dog. It engages muscles all over through dynamic movement, targeting not just your abs, but your ...