Science Behind The Suffering | Fitness Testing At The Sufferfest High Performance Lab

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The Sufferfest have pushed the boundaries of what is possible with training in the past few years, particularly creating programs tailored to an individual’s 4-dimensional power profile (4DP). To delve more into how this system works, Si is in Colorado to meet coach to the stars Neal Henderson, and learn from his experience as a coach for nearly 30 years!

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