Risk factors for plantar fasciitis among assembly plant workers.

Objective: The objective of this study was to determine the relative contributions of work activity (time spent standing, walking, or sitting), floor surface characteristics, weight, body mass index, age, foot biomechanics, and other demographic and medical history factors to the prevalence of plantar fasciitis.

Design: A cross-sectional observational study design was used.

Setting: The study site was an automobile engine assembly plant.