Open AccessAnterior cruciate ligament—return to sport after injury scale: validation of the Norwegian language version
Author(s) -
Faleide Anne Gro Heyn,
Inderhaug Eivind,
Vervaat Willemijn,
Breivik Kyrre,
Bogen Bård Erik,
Mo Ingunn Fleten,
Trøan Ingrid,
Strand Torbjørn,
Magnussen Liv Heide
Publication year - 2020
Publication title -
knee surgery, sports traumatology, arthroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.806
H-Index - 125
eISSN - 1433-7347
pISSN - 0942-2056
DOI - 10.1007/s00167-020-05901-0
Subject(s) - anterior cruciate ligament , physical therapy , norwegian , intraclass correlation , cronbach's alpha , construct validity , acl injury , reliability (semiconductor) , psychology , standard error , medicine , cohort , clinical psychology , psychometrics , statistics , surgery , mathematics , linguistics , philosophy , power (physics) , physics , quantum mechanics
Purpose Evidence is emerging on the importance of psychological readiness to return to sport after anterior cruciate ligament (ACL) reconstruction. The ACL‐Return to Sport after Injury scale (ACL‐RSI) is developed to assess this. The aim of the current study was to translate ACL‐RSI into Norwegian and examine the measurement properties of the Norwegian version (ACL‐RSI‐No). Methods ACL‐RSI was translated according to international guidelines. A cohort of 197 ACL‐reconstructed patients completed ACL‐RSI‐No and related questionnaires nine months post‐surgery. One hundred and forty‐six patients completed hop tests and 142 patients completed strength tests. Face and structural validity (confirmative factor analysis and explorative analyses), internal consistency [Cronbach's alpha ( α )], test–retest reliability [Intraclass Correlation Coefficients (ICC)], measurement error [Standard error of measurement (SEM) and smallest detectable change at individual (SDC ind ) and group level (SDC group )] and construct validity (hypotheses testing; independent t tests, Pearson's r ) were examined .Results ACL‐RSI‐No had good face validity. Factor analyses suggested that the use of a sum score is reasonable. Internal consistency and test–retest reliability were good (α 0.95, ICC 0.94 (95% CI 0.84–0.97) and measurement error low (SEM 5.7). SDC ind was 15.8 points and SDC group was 2.0. Six of seven hypotheses were confirmed. Conclusions ACL‐RSI‐No displayed good measurement properties. Factor analyses suggested one underlying explanatory factor for “psychological readiness”—supporting the use of a single sum score. ACL‐RSI‐No can be used in the evaluation of psychological readiness to return to sport after ACL injury. Level of evidence III.