Figure 3.

Ovarian volume and follicle diameter before and after a 5-day “dry” immersion on days 4 and 9 of the menstrual cycle. (A) Average ovarian volume for the group. (B) An example of an ultrasound picture: right ovary, 9th day of the menstrual cycle of the same subject before and after immersion—ovary volume decreased from 14 mL to 8.4 mL. Yellow dotted lines show the ovary sizes in the three dimensions, which are indicated by numbers 1, 2, 3 in the image (C) Average follicle diameter for the group. (D) An example of an ultrasound picture: 9th day of the menstrual cycle of the same subject before and after immersion—dominant follicle diameter increased from 12 mm to 18 mm. Yellow dotted lines mark the size of the dominant follicle (a 2x zoom is used in the “before” picture). * p < 0.05 in comparison to “before” of the same day of the menstrual cycle (dmc).