7. Strengthen Your Core
Most runners think of strengthening the core muscles as a way to reduce injury risk. While it probably works, there’s actually no scientific proof that a stronger core keeps a runner healthier. But there is proof that doing core strength exercises improves running economy and performance, probably by reducing the amount of energy the body loses to the environment through laxity in key joints.
You don’t have to make time to strengthen your core. Just do some crunches and planks and such three times a week while watching TV at home. Who says you can’t?