Most ab exercises accidentally work your hip flexors instead of your abs because they emphasize lifting your legs. The fix: curl your pelvis toward your chest to create a C-shaped spine, letting your legs move passively so your abs do the actual work.
Most ab exercises, you see, they're actually targeting your hip flexors, not your abs. Here's why. Your hip flexors are responsible for lifting your legs. So if your workouts look like this, just swinging your legs up and down, you're not targeting your abs very well. To actually train your abs, remember this. Your abs connect your ribs to your pelvis. So instead of focusing on your legs, think about curling your pelvis towards your chest, creating a C shape in your spine. Your legs come along for the ride, but your abs do the work. Apply this to all your ab exercises, and I guarantee you'll feel the difference immediately.
