CrossFit
Pace, not punishment.
MetCon pacing is a cardiac math problem. Go too hot in round 1, you crash in round 3 and finish on fumes. FitX uses energy-system splits from the combat-sport literature to prescribe round-by-round target paces — you finish strong, not first.
What FitX brings to the box.
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Energy-system pacer
Tell the app your MetCon structure (AMRAP, EMOM, RFT). It predicts your alactic–glycolytic–aerobic split and prescribes round pacing accordingly.
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Recovery-ratio tracker
Between-round recovery isn’t "catch your breath." It’s a work:rest ratio specific to the dominant energy system — FitX calculates it.
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Cross-discipline load (Elite)
CrossFit bleeds into every other discipline you train. Elite tier shows the combined weekly load so a heavy MetCon doesn’t steal from your squat day.
Why pacing, not maximum.
A WOD longer than 45 seconds stops being alactic and starts recruiting glycolytic pathways; past 3 minutes it’s overwhelmingly aerobic. Chaabene’s work on combat-sport energy systems gives FitX the split coefficients to predict where your current WOD sits — and what pace survives it.
Read the full methodologyA 12-minute AMRAP — ~15 % alactic, ~55 % glycolytic, ~30 % aerobic.
Ready to pace, not panic?
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