Forget planks — this 15-minute crunches workout sculpts your abs

This 15-minute crunches workout targets your upper abs - here's how to do it, and the benefits of adding it to your workout
This 15-minute crunches workout targets your upper abs - here's how to do it, and the benefits of adding it to your workout

This Exercise Is Seriously Efficient At Sculpting The Abs In Less Time

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abs-15 - トレーディングカード

Forget sit-ups — this 3-move ab workout chisels concrete core muscles in just 15 minutes