Sports science produces a lot of useful findings, and we cite them regularly. But there is a limitation built into almost every study in the exercise physiology literature that rarely gets acknowledged when the findings get distilled into training advice: the results describe what happened to the average participant across the sample, and you are not the average participant. You are one specific person with a specific training history, specific genetics, specific sleep patter

Most trail runners treat rest after a race or a training block as a binary: either they're training or they're not, and the "not" part is something to get through as quickly as possible before returning to normal and getting back to training.

Continuous glucose monitors were not designed for trail runners. They were designed for people with diabetes, for whom real-time glucose data is a clinical necessity rather than a performance curiosity. But over the last several years, CGMs have migrated aggressively into the endurance sports market, propelled by a wave of commercial interest, athlete testimonials, and a genuinely appealing idea: what if you could see your glucose in real time and use it to make better fuelli

Ask most runners what "aerobic training" means and they'll tell you it means running at a comfortable pace. That's not wrong, but it's incomplete enough to cause real problems in how people structure their training. The aerobic system doesn't operate as a single switch that's either on or off. It operates across a spectrum and as a system, and different points on that spectrum produce different physiological adaptations, recruit different fuel sources, and serve very differen

What happens if you replace one or more of your weekly runs with strength training sessions? Does your aerobic fitness suffer? Does your running performance hold, improve, or decline? And is there an optimal way to structure a week that includes both without one undermining the other? Or the quintessential question - can I get race-ready just by getting under the barbell?

The Romanian deadlift is the cleanest, most direct way to train the hinge pattern, which is arguably more important for the specific demands of trail running, where eccentric control on descents and hip extension power on climbs are both posterior-chain dominant qualities.