Abstract
Background and Purpose: The original version of the Anterior Cruciate Ligament-Return to Sports after Injury (ACL-RSI) scale is an English language scale with 12 items that assess the psychological impact of returning to sports after anterior cruciate ligament (ACL) reconstruction. The aims of this study were to translate the ACL-RSI scale from English to Japanese with cross-cultural adaptation, and to examine some of the measurement properties of the Japanese version of the ACL-RSI scale.
Methods: The creators of the original version were asked for and gave permission to translate and validate the questionnaire. Using international guidelines, the English version was translated and cross-culturally adapted to the Japanese version. The translated scale was completed by 40 Japanese participants who had undergone ACL reconstruction (20 men, 20 women; age 22.7 ± 7.7 years). Participants were interviewed about the difficulty of understanding the translated questionnaire after answering all the items. The feasibility, internal consistency, face validity, and ceiling and floor effects of the Japanese version were analyzed.
Results: The Japanese ACL-RSI scale showed good face validity and internal consistency (Cronbach’s α = 0.94). Additionally, there were low ceiling and floor effects.
Conclusions: This study showed that the cross-cultural adaptation of the English version of the ACL-RSI scale was successful. The Japanese version of the ACL-RSI scale can be used to investigate psychological readiness to return to sport in Japanese-speaking patients after ACL reconstruction.
