“Athletica is built on the scientific principles established in the Science and Application of High-Intensity Interval Training (Laursen & Buchheit, Human Kinetics, 2018) — the foundational text on modern HIIT science, with over 60,000 combined citations across its authors.”
Athletica Workout Reserve tells you, in real time, how close you are to your performance limit over every duration that matters — from a twelve-second sprint to a full hour. It reads from 100% (fully fresh) down to 0%. When it reaches zero, you have just produced a maximal effort for that duration.
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Load quantifies the stress of a session; it cannot tell you how you will adapt to it. The Banister impulse-response model (Banister et al., 1975) resolves this as the balance of a slow-building fitness effect and a fast-decaying fatigue effect, surfaced as fitness, fatigue, and form. Athletica runs it continuously from your training history, integrates your individual response signals, and holds the prescription inside experience-dependent guardrails.
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Sustainable intensity is governed by duration: the harder the effort, the less time you can hold it (Hill, 1925). Critical power is the asymptote of your power-duration curve, the boundary between the heavy and severe domains, above which no steady state is possible and a finite reserve drains to exhaustion (Poole et al., 2016). Athletica estimates it from your training and anchors your zones, phenotype, and load prescription to it.
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Two athletes with identical thresholds can respond to the same session in opposite directions, because that intensity sits at a different fraction of each one's reserve. The anaerobic speed or power reserve, the span from maximal aerobic to maximal sprint capacity, is a non-invasive proxy for fibre-type dominance (Bundle & Weyand, 2012). Athletica reads it from your training and places you on the speed-endurance continuum, from fatigue-resistant diesel to explosive sprinter.
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PhD · Adjunct Professor, AUT / SPRINZ
Athletica Co-founder · Exercise Physiologist · 232 publications · 17,900+ citations
#ExercisePhysiology #HIIT #TrainingScience
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PhD · Sport Scientist & Physiologist
HIIT Science Co-founder · SPSR Founder · Training Science Podcast co-host · H-index 89 · 35,000+ citations#SportScience #Football #TrainingMonitoring
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PhD · M.Eng. Mechatronics · University of Trento
Workout Reserve inventor · Sport Engineering & AI Mathematical Modelling#SportEngineering #WorkoutReserve #MathModelling
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OBE · MSc Finance · BSc Sports Science & Physiology
2× Olympic Gold medallist (London 2012, Rio 2016) · Investor in Athletica
#Triathlon #OlympicChampion #Investor
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