Find a personal trainer in West Chester, PA Visit Fit To The Core. My Specialty is training middle aged men and women, along with retirees who want to stay healthy and active. I believe there is no reason one can’t be extremely fit at any age. This takes direction and a plan. My expertise and your hard work will get you there. I believe in a holistic approach that encompasses strength, cardiovascular training, and nutrition to get the best results. No fad diets or sporadic training.