J Sport Med Phys Fit
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J Sport Med Phys Fit · Jun 2007
Menstrual cycle stage and oral contraceptive effects on anterior tibial displacement in collegiate female athletes.
The aim of this study was to establish if differences in anterior tibial displacement exists in collegiate female student-athletes at different stages of the menstrual cycle. ⋯ The results of this study suggest that: 1) the menstrual cycle does have an influence on laxity of the anterior displacement of the knee; 2) significant increases in anterior displacement are shown during the ovulation and luteal phases of the menstrual cycle; and 3) birth control subjects tend to have increased laxity when compared to those subjects who are not on hormone therapy.