"Core fitness" refers to the strength and endurance of the muscles in the center of your body, including your abdomen, back, and pelvis. It helps with stability and balance in everyday activities and sports. Full definition
Whatever you end up doing for exercise, you're definitely going to want to focus on inner core fitness and coordination training. (femfusionfitness.com)
This session will include core fitness exercise to improve your conditioning specifically for your sport. (sport.ox.ac.uk)
There are so many great reasons to focus on total core fitness! (femfusionfitness.com)