How Runners Build Fitness Without More Miles

Running can be the most consistent thing in your life, right up until your body forces a plot twist. Shelly Rose is back, and the “first half marathon” version of her has evolved into a runner with multiple half marathons, Ragnar memories, Run Disney miles, and a very real injury chapter that includes a calf strain and plantar fasciitis. That detour sparks a bigger question we all face: how do you keep building fitness when running cannot be the only tool? We get practical about cross-traini...