Figure 1

Reproductive hormone profile for Participant 1. This figure displays the reproductive hormone profile during the study for Participant 1 and the changes in caloric intake, body weight, and energy status that coincided with each category of menstrual recovery. Arrows indicate menses. Body weight was measured within 1 week of menses. ‡ Indicates data were collected 2 weeks before menses. † Indicates data were collected 6 weeks after menses. %BF: percent body fat; BMI: body mass index; BW: body weight; E1G: estrone-1-glucuronide; PdG: pregnanediol glucuronide; REE/pREE: measured resting energy expenditure/predicted resting energy expenditure; TT3: total triiodothyronine.