Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 21, Issue 12, pp 2823–2830 | Cite as

Effects of the use of oral contraceptives on hip and knee kinematics in healthy women during anterior stair descent

  • Daniel Ferreira Moreira Lobato
  • Rodrigo de Marche Baldon
  • Paloma Yan Lam Wun
  • Paulo Roberto Pereira Santiago
  • Fábio Viadanna SerrãoEmail author



Our aim was to evaluate the effects of the use of oral contraceptives (OC) on the hip and knee kinematics of healthy women during anterior stair descent.


Forty volunteers aged from 18 to 26 years were divided into two groups: 1—Group of women who had used OC for at least 3 months prior to evaluation (n = 20) and 2—Group of women who did not use OC (n = 20). The knee flexion/extension and abduction/adduction, hip flexion/extension, abduction/adduction and medial/lateral rotation excursions (degrees) were calculated for the dominant (supporting) limb during anterior stair descent. T tests for independent samples were used to compare the kinematic differences between the groups (α = 0.05).


No significant difference was verified between the groups regarding the maximum excursion of knee flexion (n.s.) and abduction (n.s.) or hip flexion (n.s.), adduction (n.s.) and medial rotation (n.s.). When considering the knee flexion at 50°, no significant difference was verified between the groups regarding the excursion of knee abduction (n.s.) or hip flexion (n.s.) adduction (n.s.) and medial/lateral rotation (n.s.).


These results suggest that the use of OC does not influence the hip and knee kinematics during anterior stair descent. Therefore, the role of this medication as a protective factor against anterior cruciate ligament injuries remains questionable.

Level of evidence



Anterior cruciate ligament Knee joint Hip joint Oral contraceptive Kinematics 



This project was financially supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)—Process no. 479177/2008-2. The authors would also like to acknowledge assistance from the PIBIC/CNPq/UFSCar.

Conflict of interest

The authors declare that there are no conflicting interest.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Daniel Ferreira Moreira Lobato
    • 1
    • 3
  • Rodrigo de Marche Baldon
    • 1
  • Paloma Yan Lam Wun
    • 1
  • Paulo Roberto Pereira Santiago
    • 2
  • Fábio Viadanna Serrão
    • 1
    Email author
  1. 1.Department of Physical TherapySão Carlos Federal UniversitySão CarlosBrazil
  2. 2.School of Physical Education and SportUniversity of São PauloRibeirão PretoBrazil
  3. 3.Departamento de FisioterapiaUniversidade Federal de São CarlosSão CarlosBrazil

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