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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?

Three tests that together paint a meaningfully complete picture of where one actually stands as an endurance athlete, and that generate specific, actionable data that no general health panel or 'feel' provides.

In this article, we present tips on how to smartly strategise low heart rate training and ease the stress around endurance training.

While the terms sound similar, the difference between speed-strength and strength-speed is crucial for optimising any training programme.