Cardio Tips Go Viral on Social

The "nothing new on race day" rule is a time-tested mantra for runners, aiming to prevent unexpected issues with gear or nutrition. This means everything from your socks and shoes to your pre-race breakfast should be items you've used successfully during multiple training sessions. The goal is to create a predictable environment for your body on a day that's already physically demanding. For those building up their mileage, the traditional advice has been the "10% rule," suggesting runners increase their total weekly distance by no more than 10% to avoid injury. However, recent research is shifting the focus from weekly totals to individual long runs. A 2025 study in the *British Journal of Sports Medicine* found that a single run more than 10% longer than your longest effort in the past 30 days was a major predictor of injury. Specifically, that study of over 5,200 runners indicated that a 10% to 30% jump in the distance of a single long run could increase injury risk by as much as 64%. This suggests that avoiding sudden large increases in your longest runs is more critical for staying healthy than strictly adhering to a weekly mileage cap. The run/walk method, popularized by Olympian Jeff Galloway, is a strategy used by both new and experienced runners to manage fatigue and reduce injury risk. The technique involves taking planned walking breaks from the beginning of a run. Interval ratios in the run/walk method are often tailored to a runner's pace. For example, a runner with a 13-minute mile pace might use a one-minute run to one-minute walk ratio. Faster runners, such as those at a 9-minute mile pace, might use a ratio of a four-minute run to a one-minute walk.