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QT2 Systems Podcast Center!Author: QT2 Systems
A great triathlon and related podcast hosted by QT2 Systems! At QT2 Systems, our mission is to help others achieve goals, cross finish lines, gain healthier minds, bodies, & spirits, and have some fun along the way. With a proven set of QT2 protocols, our coaches help guide athletes of all levels to the finish line - helping make dreams come true along the way. Learn more about QT2 Systems at www.qt2systems.com. Language: en-us Genres: Fitness, Health & Fitness, Sports Contact email: Get it Feed URL: Get it iTunes ID: Get it |
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Under the Hood: Mapping Muscle Fiber Utilization to Training Zones
Episode 2
Saturday, 21 February, 2026
This audio overview, titled "Under the Hood: Mapping Muscle Fiber Utilization to Training Zones" is a deep-dive overview where we explore the physiological anchors that define the QT2.0 training system. Rather than focusing on arbitrary percentages, we examine how Critical Power (CP) and Critical Speed (CS) serve as the definitive asymptote and boundary between physiological stability and instability. We break down the transition of energy systems from the steady-state recruitment of Type I (slow-twitch) muscle fibers in Z1 to the Type IIA Oxidative and Type IIA Glycolytic fiber recruitment that characterizes the move through Tempo (Z2) and Threshold (Z3). Finally, we look at what happens when you "raise the roof," moving into maximal aerobic intensities that recruit Type IIX fibers and draw from your finite anaerobic tank, known as W′ or D′. Discover how understanding these internal shifts allows you to move beyond "no-man's-land" training and toward a truly deliberate and intentional approach to performance. *This audio overview is AI-generated off of QT2 Systems' knowledge-base of source materials.
