This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. There is substantial evidence of a higher incidence of non-contact knee injury rates in female athletes compared to male athletes, when normalized to exposure rate for the same sport. While numerous etiologies have been proposed, recent studies suggest a link between normal hormonal fluctuations during the menstrual cycle and the incidence of knee injuries, with decreased injury rates during the luteal phase. Substantiating the association between hormonal fluctuations and injury are reports that show hormonal contraceptive use may decrease injury risk. Our pilot data suggests that normal hormonal fluctuations are evidenced in the variability of biomechanical measures; with the least variability occurring in the luteal phase. During activities that challenge knee stability, this increased variability potentially predisposes the knee to greater stress and thus a greater chance of injury. Our approach, therefore, makes it possible to monitor the influcence of hormones on performance. The long-term objective of our research is to minimize the risk of injury in women.
The specific aim of this project is to establish the link between hormonal fluctuations and variability in performance.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR000059-45
Application #
7377025
Study Section
National Center for Research Resources Initial Review Group (RIRG)
Project Start
2006-03-01
Project End
2007-02-28
Budget Start
2006-03-01
Budget End
2007-02-28
Support Year
45
Fiscal Year
2006
Total Cost
$8,934
Indirect Cost
Name
University of Iowa
Department
Internal Medicine/Medicine
Type
Schools of Medicine
DUNS #
062761671
City
Iowa City
State
IA
Country
United States
Zip Code
52242
Choo-Wosoba, Hyoyoung; Gaskins, Jeremy; Levy, Steven et al. (2018) A Bayesian approach for analyzing zero-inflated clustered count data with dispersion. Stat Med 37:801-812
Levy, Steven M; Eichenberger-Gilmore, Julie M; Warren, John J et al. (2018) Associations of fluoride intake with children's cortical bone mineral and strength measures at age 11. J Public Health Dent 78:352-359
Rao, Satish S C; Valestin, Jessica A; Xiang, Xuelian et al. (2018) Home-based versus office-based biofeedback therapy for constipation with dyssynergic defecation: a randomised controlled trial. Lancet Gastroenterol Hepatol 3:768-777
Curtis, Alexandra M; VanBuren, John; Cavanaugh, Joseph E et al. (2018) Longitudinal associations between dental caries increment and risk factors in late childhood and adolescence. J Public Health Dent 78:321-328
Lorenz, Douglas J; Levy, Steven; Datta, Somnath (2018) Inferring marginal association with paired and unpaired clustered data. Stat Methods Med Res 27:1806-1817
Oweis, Reem Reda; Levy, Steven M; Eichenberger-Gilmore, Julie M et al. (2018) Fluoride intake and cortical and trabecular bone characteristics in adolescents at age 17: A prospective cohort study. Community Dent Oral Epidemiol 46:527-534
Curtis, A M; Cavanaugh, J E; Levy, S M et al. (2018) Examining caries aetiology in adolescence with structural equation modelling. Community Dent Oral Epidemiol 46:258-264
Askie, Lisa M; Darlow, Brian A; Finer, Neil et al. (2018) Association Between Oxygen Saturation Targeting and Death or Disability in Extremely Preterm Infants in the Neonatal Oxygenation Prospective Meta-analysis Collaboration. JAMA 319:2190-2201
Kwon, Soyang; Janz, Kathleen F; Letuchy, Elena M et al. (2017) Association between body mass index percentile trajectories in infancy and adiposity in childhood and early adulthood. Obesity (Silver Spring) 25:166-171
Warren, John J; Van Buren, John M; Levy, Steven M et al. (2017) Dental caries clusters among adolescents. Community Dent Oral Epidemiol 45:538-544

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