title: The reliability and validity of the Korean version of the foot function index for patients with foot complaints.
abstract: [Purpose] The purpose of this study was to establish the reliability and validity of the Foot Function Index translated into Korean for use in patients with plantar fasciitis and foot/ankle fracture. [Subjects and Methods] Thirty-six subjects with foot complaints, 14 males and 22 females, participated in the study. Reliability was determined by using the intra-class correlation coefficient and Cronbach's alpha for internal consistency. Validity was examined by correlating Foot Function Index scores with the Short Form-36 and the Visual Analog Scale scores. [Results] Test-retest reliability was 0.90 for the pain subscale, and 0.94 and 0.91 for the disability and activity limitation subscales, respectively. The criterion-related validity was established by comparison with the Korean version of the Short Form-36 and Visual Analog Scale. [Conclusion] The Korean version of the Foot Function Index was shown to be a reliable and valid instrument for assessing foot complaints.
authors.affiliation: Department of Physical Therapy, Gimcheon University, Republic of Korea.
authors.forename: Tae-Sung
authors.initials: TS
authors.lastname: In
authors.affiliation: Department of Occupational Therapy, Semyung University, Republic of Korea.
authors.forename: Jin-Hwa
authors.initials: JH
authors.lastname: Jung
authors.affiliation: Department of Physical Therapy, Gimcheon University, Republic of Korea.
authors.forename: Keunjo
authors.initials: K
authors.lastname: Kim
authors.affiliation: Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine: 88 Olympic-ro, 43 gil, Songpa-gu, Seoul 05505, Republic of Korea.
authors.forename: Kyoung-Sim
authors.initials: KS
authors.lastname: Jung
authors.affiliation: Department of Physical Therapy, College of Health Science, Gachon University: 191 Hambangmoe-ro, Yeonsu-gu, Incheon 406-799, Republic of Korea.
authors.forename: Hwi-Young
authors.initials: HY
authors.lastname: Cho
keywords: Foot Function Index; Reliability; Validity