Hormone status and measures of joint laxity

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Krystal Smith (Creator)
Institution
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/
Advisor
Sandra J Shultz

Abstract: "This study examined the relationships between oral contraceptive pill (OCP) use and measures of joint laxity. Methods: A menstrual history questionnaire identified 33 female athletes using OCPs. Separate stepwise linear regressions examined the extent to which OCP dosage (estradiol, progesterone) and SHBG% predicted measures of anterior knee laxity, general joint laxity and genu recurvatum. Secondary regression analyses examined the relationship between duration of OCP use and each joint laxity measure. Results: OCP dosage and %SHBG binding affinity were not predictors of joint laxity. Greater duration of OCP use positively predicted greater genu recurvatum (R2 = 20.8%, P=0.008). Conclusions: While the variations in dosages of common OCPs were not found to influence measures of joint laxity, prolonged exposure to these synthetic hormones may increase genu recurvatum over time. Further work is needed to clarify the effects of OCPs on joint laxity, a potential risk factor for knee injury."--Abstract from author supplied metadata.

Additional Information

Publication
Thesis
Language: English
Date: 2007
Keywords
oral contraceptive pill, use, measures, joint laxity, female athletes, stepwise linear regressions, dosage estradiol, progesterone, anterior knee, joint, genu recurvatum
Subjects
Women athletes--Physiology
Oral contraceptives
Joints--Range of motion
Joints--Hypermobility
Knee--Wounds and injuries--Risk factors