TABLE 1.
Group demographics.
| Variable | Mean ± SD | Range |
|---|---|---|
| Height (cm) | 163.7 ± 6.1 | 152.0–174.5 |
| Weight (kg) | 65.2 ± 11.5 | 45.4–88.8 |
| BMI (wt·ht−2) | 24.4 ± 3.5 | 18.4–30.0 |
| Age (yr) | 23.0 ± 3.5 | 19.6–30.5 |
| Cycle length (d) | 27.8 ± 2.4 | 24–36 |
| Day of ovulation | 13.9 ± 2.7 | 9–20 |
| Day of 1st estradiol peak (ovulation) | 15.0 ± 3.8 | 8–25 |
| Day of 2nd estradiol peak (luteal) | 21.9 ± 3.1 | 15–27 |
| Day of progesterone rise (>2 ng·mL−1) | 17.4 ± 3.5 | 11–27 |
| Day of progesterone peak | 21.6 ± 3.1 | 15–27 |
| Estradiol at menses (pg·mL−1) | 53.4 ± 10.2 | 33.4–81.6 |
| Peak estradiol (1st peak) (pg·mL−1) | 189.7 ± 53.4 | 85.6–295.0 |
| Peak estradiol (2nd peak) (pg·mL−1) | 143.9 ± 48.7 | 48.2–258.3 |
| Peak progesterone (ng·mL−1) | 14.3 ± 5.8 | 3.6–26.8 |
| Peak testosterone (ng·mL−1) | 68.9 ± 16.7 | 37.0–115.0 |
| Minimum absolute knee laxity values (mm) | 3.7 ± 1.5 | 1.3–7.8 |
| Maximum absolute knee laxity values (mm) | 6.9 ± 1.8 | 4.0–9.7 |
| Magnitude of laxity change (mm) | 3.2 ± 1.1 | 1.5–5.3 |
N = 22.