AJSM
HOME HELP CONTACT US SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Sign In to gain access to subscriptions and/or personal tools.
First published on May 18, 2004, doi:10.1177/0363546503261360
This version was published on July 1, 2004
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
32/5/1150    most recent
0363546503261360v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (16)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Belanger, M. J.
Right arrow Articles by Ehrlich, M. G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Belanger, M. J.
Right arrow Articles by Ehrlich, M. G.
Related Collections
Right arrow Injury
Right arrow Female Athletes
Right arrow Knee
The American Journal of Sports Medicine 32:1150-1157 (2004)
© 2004 American Orthopaedic Society for Sports Medicine

Winner of the 1999 Aircast Award

Knee Laxity Does Not Vary With the Menstrual Cycle, Before or After Exercise

Michael J. Belanger, MD*, Douglas C. Moore, MS{dagger},{ddagger}, Joseph J. Crisco, PhD, III{ddagger}, Paul D. Fadale, MD{ddagger}, Michael J. Hulstyn, MD{ddagger} and Michael G. Ehrlich, MD{ddagger}

From the * Department of Orthopaedics, Harvard Medical School/Memorial Hospital of Rhode Island, Pawtucket, Rhode Island, and {ddagger} Bioengineering Laboratory, Department of Orthopaedics, Brown Medical School/Rhode Island Hospital, Providence, Rhode Island

{dagger} Address correspondence to Douglas C. Moore, MS, Bioengineering Laboratory, CORO West, Suite 404, 1 Hoppin Street, Providence, RI 02903 (e-mail: douglas_moore{at}brown.edu).

Background: An intriguing explanation for the disproportionately high rate of anterior cruciate ligament injury in female athletes is that the structural properties of the anterior cruciate ligament are affected by the menstrual hormones. Whether this actually occurs, however, is the subject of ongoing debate.

Hypotheses: (1) Anterior cruciate ligament laxity is different in the follicular, ovulatory, and luteal phases of the menstrual cycle, and (2) exercise exacerbates the difference in anterior cruciate ligament laxity in the 3 phases.

Methods: Over the course of 10 weeks, repeated knee laxity measurements were taken on 27 high-level female athletes, before and after exercise. Point in the menstrual cycle was determined with charts of waking temperature and menstruation. The independent effects of menstrual phase and exercise were evaluated using generalized estimating equations.

Results: Data from 18 participants were included in the final analysis. There were no significant differences in anterior cruciate ligament laxity in any of the 3 menstrual phases, before or after exercise.

Conclusions: Anterior cruciate ligament laxity is not significantly different during the follicular, ovulatory, and luteal phases of the menstrual cycle, and bicycling exercise does not exacerbate or create any differences in anterior cruciate ligament laxity.

Key Words: anterior cruciate ligament (ACL) • menstrual cycle • knee laxity • exercise • KT-2000 arthrometer




This article has been cited by other articles:


Home page
 Am J Sports MedHome page
M. Liederbach, F. E. Dilgen, and D. J. Rose
Incidence of Anterior Cruciate Ligament Injuries Among Elite Ballet and Modern Dancers: A 5-year Prospective Study
Am. J. Sports Med., September 1, 2008; 36(9): 1779 - 1788.
[Abstract] [Full Text] [PDF]

Home page
 Am J Sports MedHome page
F. A. Wentorf, K. Sudoh, C. Moses, E. A. Arendt, and C. S. Carlson
The Effects of Estrogen on Material and Mechanical Properties of the Intra- and Extra-articular Knee Structures
Am. J. Sports Med., December 1, 2006; 34(12): 1948 - 1952.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Endocrinol. Metab.Home page
S. J. Warden, L. K. Saxon, A. B. Castillo, and C. H. Turner
Knee ligament mechanical properties are not influenced by estrogen or its receptors
Am J Physiol Endocrinol Metab, May 1, 2006; 290(5): E1034 - E1040.
[Abstract] [Full Text] [PDF]

Home page
 Am J Sports MedHome page
B. D. Beynnon, I. M. Bernstein, A. Belisle, B. Brattbakk, P. Devanny, R. Risinger, and D. Durant
The Effect of Estradiol and Progesterone on Knee and Ankle Joint Laxity
Am. J. Sports Med., September 1, 2005; 33(9): 1298 - 1304.
[Abstract] [Full Text] [PDF]

Home page
 BMJHome page
Minerva
BMJ, October 16, 2004; 329(7471): E330 - E330.
[Full Text] [PDF]

Home page
 BMJHome page
Minerva
BMJ, July 31, 2004; 329(7460): 300 - 300.
[Full Text] [PDF]


HOME HELP CONTACT US SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2004 by the American Orthopaedic Society for Sports Medicine.