BACKGROUND: @entity3444 is one of the more common soft-tissue disorders of the foot, yet little is known about its etiology. The purpose of the present study was to use an epidemiological design to determine whether risk factors for @entity3444 could be identified. Specifically, we examined the risk factors of limited @entity3681 with the knee extended, @entity28 , and time spent weight-bearing. METHODS: We used a matched case-control design, with two controls for each @entity1 . The matching criteria were age and gender. We identified fifty consecutive @entity1 with @entity3444 who met the inclusion criteria. The data that were collected included height, weight, whether the subject spent the majority of the workday weight-bearing, and whether the subject was a jogger or runner. We used a reliable goniometric method to measure passive @entity3681 bilaterally. The main outcome measure was the adjusted odds ratio of @entity3444 associated with varying degrees of limitation of @entity3681 , different levels of body mass, and the subjects' reports on weight-bearing. RESULTS: Individuals with </=0 degrees of dorsiflexion had an odds ratio of 23.3 (95% confidence interval, 4.3 to 124.4) when compared with the referent group of individuals who had >10 degrees of @entity3681 . Individuals who had a body-mass index of >30 kg/m (2) had an odds ratio of 5.6 (95% confidence interval, 1.9 to 16.6) when compared with the referent group of individuals who had a body-mass index of </=25 kg/m (2). Individuals who reported that they spent the majority of their workday on their feet had an odds ratio of 3.6 (95% confidence interval, 1.3 to 10.1) when compared with the referent group of those who did not. CONCLUSIONS: The risk of @entity3444 increases as the range of @entity3681 decreases. Individuals who spend the majority of their workday on their feet and those whose body-mass index is >30 kg/m (2) are also at increased risk for the development of @entity3444 . Reduced @entity3681 , @entity28 , and work-related weight-bearing appear to be independent risk factors for @entity3444 . Reduced @entity3681 appears to be the most important risk factor.

Risk factors for XXXX : a matched case-control study.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity3681 :: ('MESH:D016512', 'Disease') :: ['ankle dorsiflexion'] @entity28 :: ('MESH:D009765', 'Disease') :: ['obesity'] @entity3444 :: ('MESH:D036981', 'Disease') :: ['Plantar fasciitis', 'unilateral plantar fasciitis', 'plantar fasciitis']
@entity3444 :: (MESH:D036981,Disease) :: ['Plantar fasciitis']
