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VO2max is still the reference measure for aerobic capacity, but the gold standard test is expensive and not very sensitive. Here is what the number means, and which alternatives hold up.
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CGM sensors are sold as real-time fuel gauges. The physiology tells a different story. Here is what the evidence supports, and the one thing a sensor is genuinely useful for.
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Running power is a far better pacing tool than pace or heart rate, but it has one blind spot every coach should know about. Three studies on what the Stryd sensor does and does not see.
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The 2025 research is in, and it shatters the main myth about hybrid racing. Hyrox is an endurance sport, not a strength sport. Here is what actually predicts a faster finish.
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Tech entrepreneur Jeroen De Wit bundles his sport and health investments in his Leadout fund and invests in Coachbox. Together with Eva Maertens and Kristof De Smet, the three entrepreneurs want to help grow the platform into the reference for endurance coaches across Europe.
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Zones from formulas are a best guess. A lactate test replaces that guess with physiology, and repeat testing turns your coaching into something you can prove works.
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A lactate test gives the most complete picture of your aerobic and anaerobic capacity. Here is the protocol step by step, and how to translate the results into training.
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Heart rate variability has gone from niche to mainstream. Here's how to turn HRV data into better training decisions.
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AI can analyze thousands of workouts in seconds. The real question isn't whether it replaces the coach. It's what a coach can do with it.
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The debate over the optimal intensity distribution in endurance sports has run for years. Here's what the research says and how to apply it.
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From passion to profession: everything you need to know to become an endurance sports coach, from qualifications to building your coaching business.
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A solid macro-plan is the difference between training toward a goal and training at random. Here's how to build one.
Read articleZone 2 training is the most talked-about topic in endurance sports right now. But what does it actually mean, and how do you know you're really training in zone 2?
Read articleTraining zones are the foundation of structured training. Learn how to set your zones using heart rate, power, or lactate.
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Recent studies suggest that pushing the limits of carbohydrate consumption during prolonged exercise may yield performance benefits, challenging traditional recommendations.
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Cryotherapy is a recovery method that uses extremely cold temperatures to reduce inflammation and muscle soreness. This type of therapy is becoming increasingly popular among endurance athletes.
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Blood restriction training, also known as occlusion training, is a method that involves using a tourniquet-like device to restrict blood flow to a specific muscle group during exercise.
Read articleRest is an essential component of the supercompensation model. Supercompensation is a physiological concept that describes the process of the body adapting to physical stress.
Read articleFinding the right equilibrium between overall volume and intensity in workouts is crucial when it comes to improving endurance. Here are key recommendations.
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Low-carb and ketogenic diets are gaining traction among endurance athletes for potential performance advantages, including enhanced fat burning and improved metabolic efficiency.
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VO2 max represents the maximum amount of oxygen that an individual can consume per minute during exercise. It is one of the most important indicators of cardiovascular fitness.
Read articleIn a world that constantly pushes the boundaries of human potential, endurance sports have emerged as a captivating realm. Explore the cutting-edge trends shaping these disciplines.
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Massage and compression therapy can be effective in helping with the recovery process for endurance athletes. Here are a few ways that these modalities can help.
Read articleTo achieve balanced and functional fitness as a runner, incorporate strength training two to three times weekly. This addition will enhance your running capabilities while reducing injury risk.
Read articleCoachbox is built by real life coaches and athletes. Hear from our passionate community of coaches and athletes who use Coachbox day in, day out.
View case studiesCoachbox helps me coach my athletes more efficiently, saving up time for my own workouts.
Frederik Van Lierde
IRONMAN World Champion
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