I used to struggle with knee pain when I ran until I made these four changes, says an expert running coach

Smiling woman running outside.

There are two ways to approach your first marathon: the smart way and the hard way. Six years ago, personal trainer James Stirling—better known as London Fitness Guy—chose the hard way.

“When I trained—or, more accurately, didn't train as well as I should have—for the London Marathon in 2019 that’s when I first suffered with knee pain,” he tells Fit&Well.