It’s hard not to marvel when you watch Chris Conley, a wide receiver on the Jacksonville Jaguars, extend his arms to make a tough catch and keep sprinting down the field. His secret? According to Cassie Ettel, the team’s associate athletic trainer, it’s a strong, stable core.
“The core plays a vital role in the body’s mechanics and athletic performance,” she says. “It’s the link between the upper and lower body and forms the foundational support for all movements of the limbs. Trying to generate power from a weak core is like…
