Marie-Jacqueline Sakká studied in the Department of Geology at the Aristotle University of Thessaloniki. From an early age, she believed that when the body functions properly and you feel physically strong, you can achieve anything. She explored various alternative exercise methods but was ultimately captivated by the Pilates method, which she has been practicing professionally for the past five years. She is a certified Pilates instructor (mat, props & equipment) and Personal Trainer, certified by the private fitness school Studio One. She is soon completing her training in Classical Pilates—the authentic method—under Keren Pantzia, a second-generation teacher of Joseph Pilates. She has also attended international seminars with instructors such as Emanuela Boro and Simona Cipriani.

She loves teaching with precision and detail; in her classes, she guides each student to consciously control their body and connect body and mind, making exercise safe, effective, and meaningful. Since mid-2025, she has been part of the Tri Body Studio (TBS) team.