Home / Mind + Body / The 5 Core Moves Fitness Experts Recommend for People Over 50 Shutterstock Expert-Recommended Want a stronger core after 50? Start with these 5 trainer-approved moves. When you hear the term “core training,” you likely picture crunches, sit-ups, and six-pack abs. But after 50, the purpose of core training becomes less about appearance and more about the things that help you stay independent and support healthy aging, such as maintaining your strength, balance, and mobility.