Menstrual cycle and training — Women Runner Health

Cycle & training

Menstrual cycle and training

Energy, recovery, and motivation can shift across your cycle. Tracking how you feel for 2–3 months beats fighting every sluggish day or forcing hard sessions when your body wants rest.

Some women feel strongest mid-cycle (follicular phase); others feel sluggish, crampy, or bloated before and during menstruation. Both patterns are normal — the goal is adjustment, not cancellation.

How to avoid

·Assuming every bad run means you're unfit — check where you are in your cycle
·Skipping fuel on heavy flow days — iron loss can add to fatigue
·Ignoring severe pain, flooding, or cycles shorter than 21 or longer than 35 days without medical review

How to fix / recover

·Menstruation (days 1–5): favor easy runs, walk-run, or rest; heat pads and hydration help cramps
·Follicular phase (after period): often a good window for intervals, tempo, or strength focus
·Luteal phase (before next period): reduce intensity if needed; prioritize sleep and protein
·Keep a simple log: cycle day + how the run felt — patterns emerge quickly

Practical adjustments

·Plan key workouts for mid-cycle if that's when you consistently feel best
·Use extra rest days without guilt during menstruation — consistency over months matters more than one week
·Consider iron-rich foods (lean red meat, lentils, spinach) if periods are heavy

When to see a specialist

·Severe cramps that don't respond to basic care or stop you from daily activities
·Very heavy bleeding (soaking through hourly) or cycles that suddenly change
·Missing periods while not pregnant — see RED-S section above

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www.letsrunnow.com//injuries/for-women-runners/menstrual-cycle

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Women runner health index · Women's running guide · Men runner health

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