No sit-ups or crunches — this 15-minute dumbbell workout builds a stronger core and improves your posture

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Strengthen your core and sculpt your abs with this four-move dumbbell workout. Trainer Sandy Sklar demonstrates each exercise to help you perfect your form and maximize results.

No sit-ups or crunches — this 15-minute dumbbell workout builds a stronger core and improves your posture : Read more