Table 1 Baseline descriptives of the women

Demographic characteristics

  Age (yr)

  Height (cm)

  Weight (kg)

  BMI (kg/m²)

  Body fat (%)

Reproductive characteristics

  Age of Menarche (yr)

  Gynecological age (yr)

  Duration of amenorrhea (days)

  Duration until resumption

  (days in intervention)

  # Cycles during intervention

Training characteristics

  Physical activity (min/wk)^*

  VO₂max (ml/kg/min)