video1.0<iframe src="https://www.loom.com/embed/60e673b4634049bca17b439ca6617953" frameborder="0" width="1662" height="1246" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>12461662Loomhttps://www.loom.com12461662https://cdn.loom.com/sessions/thumbnails/60e673b4634049bca17b439ca6617953-9538f5f8335400a7.gif363.957In this video, I explain the concept of critical power, which defines the threshold between stable and unstable physiology during exercise. Critical power is the intensity that can be sustained for 30 to 70 minutes, and it is represented by the asymptote of our power duration curve. I also discuss how we can determine critical power and anaerobic capacity using linear regression from three maximal efforts of varying durations. I encourage you to utilize our calculator to input your test results and derive your critical power and training zones. Understanding these metrics will allow us to tailor training more effectively based on energy systems.