Decline crunches and decline sit ups are popular ab exercises. But there is one key distinction that you need to know to get better results.
Decline Crunch Exercise for Abs of Steel - SuperHuman Fitness
Which is more helpful to develop abs, normal sit-ups or declined
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Great Abs!
Decline Crunches vs. Decline Sit-Ups
Front Squat Made Simple: Complete Exercise Guide, Video, & Alternatives
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