
When you’re training for a race, it’s easy to think the focus should be on clocking up the miles and training your legs.
But when I ran my first half marathon, my trainer encouraged me to do lots of upper-body and core strength exercises.

When you’re training for a race, it’s easy to think the focus should be on clocking up the miles and training your legs.
But when I ran my first half marathon, my trainer encouraged me to do lots of upper-body and core strength exercises.