Josh Kerr’s altitude strategy extended far beyond a traditional training camp. Living and training at moderate altitude in Albuquerque, he then slept at a higher simulated altitude in a Box Altitude bedroom—creating an around-the-clock approach to altitude exposure. Discover how this “live medium, sleep high” model became part of the preparation behind...
The masters demographic is structurally important to endurance sport. Race fields at Western States, UTMB, Boston, Kona, and the broader competitive endurance calendar carry meaningful representation in the 45 to 65 age bracket. The serious masters athlete is typically experienced, self-aware, and pursuing performance inside a different physiological context than the athlete...
Project 222: Inside Josh Kerr’s World Record Journey—and Box Altitude’s Role Some world records happen unexpectedly. Others are planned years in advance. Josh Kerr’s historic 3:42.66 mile world record was the latter. Long before stepping onto the track at London’s Diamond League meeting on 18 July 2026, Kerr publicly announced his ambition...
Sleeping at moderate altitude through normobaric hypoxia is among the most studied physiological interventions in endurance sport, with several decades of peer-reviewed research and an established safety profile across multiple athletic populations. For the cautious first-time evaluator, the partner of an athlete who is the other decision-maker in a household purchase, or...
Project 222: Inside Josh Kerr’s World Record Journey—and Box Altitude’s Role Some world records happen unexpectedly. Others are planned years in advance. Josh Kerr’s historic 3:42.66 mile world record was the latter. Long before stepping onto the track at London’s Diamond League meeting on 18 July 2026, Kerr publicly announced his ambition...
England’s Mexico City World Cup challenge is not just tactical — it is physiological. At 2,240 metres above sea level, altitude can reduce oxygen availability, increase fatigue, slow recovery between sprints, and change how the ball travels. This article looks at how England prepared, what they could not fully adapt to, and...
Injured athletes face two compounding losses. The first is the loss of training stimulus that drives ongoing adaptation. The second is the gradual erosion of the haematological infrastructure that sustained aerobic performance depends on. Together these produce faster fitness decline than most athletes anticipate, and the rehabilitation timeline often runs longer than...