Who needs reverse crunches? Try horizontal ab squats to strengthen your core and build robust hips instead

The horizontal ab squat is a core exercise that strengthens your lower abs and hip flexors without weights while remaining ...
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The Trainer-Approved ‘Sissy Squat’ Will Work Your Abs, Glutes, and Quads All at Once

The sissy squat isolates your quad muscles, in addition to strengthening your abs and hips. Plus, you don't need any equipment to do it. Squats are one of those exercises that seem to appear in nearly ...