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. 2022 Jun 5;11(11):3222. doi: 10.3390/jcm11113222

Table 5.

Changes in genu recurvatum during the menstrual cycle.

Early Follicular
Phase
Late Follicular
Phase
Ovulation
Phase
Luteal
Phase
Total
Genu recurvatum [°]
Female non-athletes (n = 19) 7.0 ± 3.9 7.2 ± 3.9 7.3 ± 4.1 7.7 ± 4.1
Eumenorrhea group (n = 11) 6.2 ± 3.9 6.3 ± 3.8 6.3 ± 3.9 6.6 ± 4.1 6.4 ± 3.9
Oligomenorrhea group (n = 8) 8.1 ± 3.9 8.4 ± 3.8 8.6 ± 4.2 9.3 ± 3.9 8.6 ± 3.9
Female athletes (n = 15) 7.7 ± 3.7 8.3 ± 3.7 a 8.7 ± 3.8 b 9.0 ± 3.8 c
Eumenorrhea group (n = 8) 6.1 ± 3.7 7.0 ± 4.1 7.4 ± 4.4 7.6 ± 4.3 7.0 ± 4.1
Oligomenorrhea group (n = 7) 9.5 ± 2.8 9.8 ± 2.8 10.2 ± 2.6 10.7 ± 2.4 10.1 ± 2.6

Values are presented as means ± SD. a—Statistically significant difference compared with the early follicular phase in female athletes (p = 0.050). b—Statistically significant difference compared with the early follicular phase in female athletes (p = 0.011). c—Statistically significant difference compared with the early follicular phase in female athletes (p = 0.004).