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Leaver, R.; Schwellnus, M. FACSM; Lombard, C.*; Noakes, T. FACSM

Medicine & Science in Sports & Exercise: May 1999 - Volume 31 - Issue 5 - p S79
Annual Meeting Abstracts

MRC/UCT Sports Medicine, University of Cape Town, South Africa, * Medical Research Council, South Africa

(Sponsor: W. Derman, FACSM)

    Abstract 234

    A study was undertaken to relate osteoarthritis [OA] in the weight bearing [WB] joints [hip, knee, ankle] to total running volume in 126 marathon runners [R] [19-75yrs] and 60 non-runners [NR] [19-75yrs] who responded to a questionnaire [59% response rate] that was previously validated to diagnose early OA by symptoms [pain, swelling, stiffness] [sensitivity=67%, specificity=89%] using radiography/arthroscopy. Runners were sub-divided into 3 groups according to total lifetime running volume [hrs] [yrs run X hrs/week X 4 X months/yrs run] [R1, n=40:<850, R2, n=43:850-2700, R3, n=43: >2700]. The prevalence [%] of OA was not significantly different [p>0.05] between the 4 groups for all WB joints [NR=4.7, R1=4.2, R2=4.2, R3=3.7], hip joint [NR=3.2, R1=0.5, R2=1.1, R3=0.5], knee joint [NR=2.1, R1=3.7, R2=3.7, R3=2.6], and ankle joint [NR=0, R1=1.6, R2=0, R3=0.5]. However, once adjusted for age, and previous injury to WB joints, the Odds Ratio for OA of all WB joints in the R1 group [3.2, CI 1.0-10.3], was significantly higher [p<0.05] compared with R2 [1.7, CI 0.6-4.8], and R3 [1.1, CI 0.4-3.1]. This study shows that lower running volumes are significantly associated with increased risk of OA, and that there is a possible decline in the risk of OA with increasing lifetime running volume.

    Section Description

    American College of Sports Medicine; 46th Annual Meeting; Washington State; Convention & Trade Center; June 2-5, 1999

    The abstracts contained herein were prepared by the authors and then printed by photo-offset without correction. The accuracy, form of citation, designation, nomenclature, and the like, all remain the responsibility of the author. Readers should note that the appearance of an abstract does not imply future publication of a regular scientific manuscript.


    © 1999 Lippincott Williams & Wilkins, Inc.