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A schematic figure highlighting the variability in LH (luteinizing hormone) surge in women highlighting the impracticality of planning greater training volume in one versus another phase of a woman's menstrual cycle. Data are theoretical but based on data showing the extraordinary variability of the LH surge in women—for example: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9473716/ (Supplementary Figure S3). Data redrawn with permission.
