Ab exercises will not negatively affect the results of your tummy tuck or future liposuction. In fact, strengthening your core with ab exercises can help maintain a toned appearance and enhance the outcome of both procedures. However, keep a few points in mind:1. Since you’re 9 months post-tummy tuck, you should be fully healed, but always confirm with your surgeon that it’s safe to do intensive ab exercises. If you're considering liposuction, avoid strenuous core workouts in the recovery period after that procedure as well (typically 4-6 weeks).2. While ab exercises can strengthen and tone the underlying muscles, they won’t affect the removal of excess fat or skin, which are addressed through liposuction and the tummy tuck. The exercises will, however, help with long-term results by keeping the muscles tight and well-defined.3. Ab exercises will help build muscle definition, which could enhance the contouring effects of both your tummy tuck and future liposuction. In short, ab exercises will generally benefit your results by maintaining a flat, toned stomach, as long as you follow proper recovery guidelines post-surgery.