1: "Russian Twists: Engage your core with twisting motions using dumbbells."

2: "Woodchoppers: Strengthen your obliques by mimicking a wood chopping motion."

3: "Leg Raises: Tone lower abs by lifting legs with added resistance."

4: "Plank Rows: Work entire core by combining plank and row motions."

5: "Oblique Side Bends: Define side abs with weighted side bends."

6: "Mountain Climbers: Increase core strength with dynamic mountain climbers."

7: "Crunch and Press: Combine crunches with shoulder presses for full-body workout."

8: "Reverse Crunches: Target lower abs with reverse crunch motion."

9: "Seated Russian Twists: Engage core while seated for added challenge."