Etiologic factors associated with anterior knee pain in distance runners.

Abstract:

PURPOSE:The objectives of this study were 1) to examine the differences between a noninjured (C) cohort of runners (N = 70) and runners afflicted with anterior knee pain (AKP) according to selected training, anthropometric, rearfoot motion, ground reaction force, and muscular strength and endurance variables; 2) to explore multivariate relationships among these measures in the well and injured groups; and 3) to develop specific hypotheses concerning risk factors for injury that will later be tested in a prospective clinical study. METHODS:High speed videography (200 frames x s(-1)), a force platform (500 Hz), and a Cybex II+ isokinetic dynamometer were used to assess rearfoot motion, ground reaction forces, and knee muscular strength and endurance, respectively. A linear discriminant function was performed on each of the five categories of variables and revealed 19 significant (P < or = 0.05) predictors. These variables were then combined and a final discriminant function analysis was performed. RESULTS:Pronation through the first 10% of stance, arch index, shoe mileage, and extension peak torque were the best overall (P < or = 0.05) predictors. The AKP group had smaller mean values on all four significant predictors. CONCLUSION:With the exception of shoe mileage, which is likely a response to rather than a risk factor for AKP, these results should prove useful to clinicians in identifying runners at risk for anterior knee pain.

journal_name

Med Sci Sports Exerc

authors

Duffey MJ,Martin DF,Cannon DW,Craven T,Messier SP

doi

10.1097/00005768-200011000-00003

subject

Has Abstract

pub_date

2000-11-01 00:00:00

pages

1825-32

issue

11

eissn

0195-9131

issn

1530-0315

journal_volume

32

pub_type

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