Applicability of cutoff scores of Chinese Cumberland Ankle Instability Tool and Foot and Ankle Ability Measure as inclusion criteria for study of chronic ankle instability in Chinese individuals

To examine the applicability of Chinese Cumberland Ankle Instability Tool (CAIT-C) and Foot and Ankle Ability Measure (FAAM-C) as inclusion criteria recommended by the International Ankle Consortium (IAC) for study of chronic ankle instability in the Chinese individuals. Cross-sectional comparative design with known groups. Research laboratory. 145 participants with chronic ankle instability (CAI) and 66 participants without injury. CAIT-C and FAAM-C Activities of Daily Living (FAAM-C-ADL) and FAAM-C Sports (FAAM-C-Sports). The CAIT-C scores (18.2 ± 5.6), FAAM-C-ADL scores (97.0 ± 4.3) and FAAM-C-Sports scores (92.2 ± 10.3) of the CAI group were all lower than the CAIT-C scores (27.4 ± 3.1), FAAM-ADL scores (99.0 ± 2.1) and FAAM-Sports scores (98.4 ± 3.1) (P