If You Can Hold a Plank This Long After 55, Your Core Strength Is Stronger Than 90% of Peers
The first thing I look for in a plank isn’t the time. It’s the setup. I want to see someone create a strong brace, settle their hips into the right position, and keep breathing without turning the whole thing into a strain-fest. After 55, that tells you a lot. A plank asks your core to […]