the title says it all my upper abs are pretty good put i just dnt know enough lower ab exercises to get them tougher any suggestions

the title says it all my upper abs are pretty good put i just dnt know enough lower ab exercises to get them tougher any suggestions

Leg raises, slow scissors, kick ups

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I do those except I curl my body up even more and try to touch the ceiling with my feet. We have these straps that go around your arms at my gym that make it easier than just holding onto a bar.