title: The Dutch language anterior cruciate ligament return to sport after injury scale (ACL-RSI) - validity and reliability.
abstract: The ACL-Return to Sport after Injury scale (ACL-RSI) measures athletes' emotions, confidence in performance, and risk appraisal in relation to return to sport after ACL reconstruction. Aim of this study was to study the validity and reliability of the Dutch version of the ACL-RSI (ACL-RSI (NL)). Total 150 patients, who were 3-16 months postoperative, completed the ACL-RSI(NL) and 5 other questionnaires regarding psychological readiness to return to sports, knee-specific physical functioning, kinesiophobia, and health-specific locus of control. Construct validity of the ACL-RSI(NL) was determined with factor analysis and by exploring 10 hypotheses regarding correlations between ACL-RSI(NL) and the other questionnaires. For test-retest reliability, 107 patients (5-16 months postoperative) completed the ACL-RSI(NL) again 2 weeks after the first administration. Cronbach's alpha, Intraclass Correlation Coefficient (ICC), SEM, and SDC, were calculated. Bland-Altman analysis was conducted to assess bias between test and retest. Nine hypotheses (90%) were confirmed, indicating good construct validity. The ACL-RSI(NL) showed good internal consistency (Cronbach's alpha 0.94) and test-retest reliability (ICC 0.93). SEM was 5.5 and SDC was 15. A significant bias of 3.2 points between test and retest was found. Therefore, the ACL-RSI(NL) can be used to investigate psychological factors relevant to returning to sport after ACL reconstruction.
authors.affiliation: a Center for Sports Medicine , University of Groningen, University Medical Center Groningen , Groningen , The Netherlands.|b Department of Rehabilitation , University of Groningen, University Medical Center Groningen , Groningen , The Netherlands.
authors.forename: Anton J
authors.initials: AJ
authors.lastname: Slagers
authors.affiliation: c Department of Trauma Surgery , University of Groningen, University Medical Center Groningen , Groningen , The Netherlands.|d Department of Orthopaedics , Martini Hospital Groningen , Groningen , The Netherlands.
authors.forename: Inge H F
authors.initials: IH
authors.lastname: Reininga
authors.affiliation: a Center for Sports Medicine , University of Groningen, University Medical Center Groningen , Groningen , The Netherlands.|e Department of Orthopaedics , University of Groningen, University Medical Center Groningen , Groningen , The Netherlands.
authors.forename: Inge
authors.initials: I
authors.lastname: van den Akker-Scheek
mesh_terms: D000328:Adult; D016118:Anterior Cruciate Ligament; D000070598:Anterior Cruciate Ligament Injuries / Q000523:psychology* / Q000534:rehabilitation; D001265:Athletic Injuries / Q000523:psychology* / Q000534:rehabilitation; D054874:Athletic Performance / Q000523:psychology*; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D009426:Netherlands; D020127:Recovery of Function; D015203:Reproducibility of Results; D000068958:Return to Sport / Q000523:psychology*; D018570:Risk Assessment; D011795:Surveys and Questionnaires / Q000592:standards*; D014175:Translating; D035502:Trust; D055815:Young Adult
keywords: ACL reconstruction; knee; patient-reported measures; psychology; return to sport