Translation, cross-cultural adaptation, and reliability of the Foot Posture Index (FPI-6) - Brazilian version.

: The Foot Posture Index (FPI) is a quick, easy, and reliable clinical assessment for measuring foot posture variation in different environments. The aim of the study was to translate the FPI into Brazilian Portuguese and assess its inter and intra-observer reliability. : The cross-cultural adaptation of the 6-item version of the FPI (FPI-6) was accomplished using standard guidelines.