Fitness
Cycle-Synced Cardio
Cycle-synced cardio flexes aerobic intensity with monthly energy—harder work when readiness is high, easier volume when luteal fatigue rises.
Cycle-synced cardio rotates easy, moderate, and hard aerobic sessions with energy across the month—more intervals or hills when readiness is high, more zone 1–2 when luteal fatigue or heat sensitivity rises. Research on phase-specific VO2 gains is limited; subjective recovery still rules.
Avoid stacking two hard cardio days before heavy bleeding if history shows crashes.
Common questions
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Should HIIT stop in the luteal phase?
Only if sleep, RPE, or symptoms say so. Some people tolerate intervals late cycle; others need easy cardio only—let logs decide.
Related terms
Put Cycle-Synced Cardio into practice
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