but a reverse crunch targets the lower portion of your abs, leveling up the resistance with a dumbbell. Instead of relying on momentum, your core is forced to work overtime to lift your legs and hips.

If you don't have a dumbbell, you can do this move with ... Taylor says these leg lifts, also called reverse crunches, are one of her favorite crunch variations. Here's how to do them.

By doing a series of exercises back to back, and using a mixture of your bodyweight and a pair of dumbbells ... 14 Front rack reverse lunge – 16 each side Reverse crunch – 12 Looking for ...

While sit-ups and crunches are an effective way ... For example you swing the dumbbells in front of you while doing reverse lunges, and raise the weights above you in between doing glute kickbacks.