Construct and criterion validity of the Malaysia version of Lower Extremity Functional Scale (LEFS)

Objective: The objective of this study is to translate the Lower Extremity Functional Scale (LEFS) into the Malay language and to validate the resulting version. Methods: A two-stage observational study was conducted. The LEFS was initially cross-culturally adapted to Malay language through double f...

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Main Authors: Muhammad Ariff Mohd Yunus, Ramli Musa, Mohd Yusof Nazri
Format: Article
Language:English
Published: Elsevier 2017-10-01
Series:Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214687317303230
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author Muhammad Ariff Mohd Yunus
Ramli Musa
Mohd Yusof Nazri
author_facet Muhammad Ariff Mohd Yunus
Ramli Musa
Mohd Yusof Nazri
author_sort Muhammad Ariff Mohd Yunus
collection DOAJ
description Objective: The objective of this study is to translate the Lower Extremity Functional Scale (LEFS) into the Malay language and to validate the resulting version. Methods: A two-stage observational study was conducted. The LEFS was initially cross-culturally adapted to Malay language through double forward and backward translation. The finalized version of Malay LEFS (M-LEFS) was subsequently validated for both construct validity and criterion validity. Participants (n = 208) with normal lower limb condition and various lower limb conditions completed the M-LEFS. Results: Reliability of M-LEFS revealed excellent Cronbach's alpha value of 0.98. Construct validity, evaluated using exploratory factor analysis, exhibited good factor loadings (>0.6) of all 20 items. Interestingly, we extracted 2 components which was not reported elsewhere. With a cut-off point of 60, the sensitivity of the scale was 99% and the specificity was 81%. Conclusions: The M-LEFS had very good psychometric properties among the studied population. Further studies are needed to enhance these preliminary outcomes in Malaysia.
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spelling doaj.art-ff0a95e0a0154ca2849c5bd036e9f8f02022-12-22T01:31:14ZengElsevierAsia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology2214-68732017-10-0110C81110.1016/j.asmart.2017.09.002Construct and criterion validity of the Malaysia version of Lower Extremity Functional Scale (LEFS)Muhammad Ariff Mohd Yunus0Ramli Musa1Mohd Yusof Nazri2Department of Orthopedic & Rehabilitation, Kulliyyah of Medicine, International Islamic University Malaysia, Jalan Hospital, 25150 Kuantan, Pahang, MalaysiaDepartment of Psychiatry, Kulliyyah of Medicine, International Islamic University Malaysia, Jalan Hospital, 25150 Kuantan, Pahang, MalaysiaDepartment of Orthopedic & Rehabilitation, Kulliyyah of Medicine, International Islamic University Malaysia, Jalan Hospital, 25150 Kuantan, Pahang, MalaysiaObjective: The objective of this study is to translate the Lower Extremity Functional Scale (LEFS) into the Malay language and to validate the resulting version. Methods: A two-stage observational study was conducted. The LEFS was initially cross-culturally adapted to Malay language through double forward and backward translation. The finalized version of Malay LEFS (M-LEFS) was subsequently validated for both construct validity and criterion validity. Participants (n = 208) with normal lower limb condition and various lower limb conditions completed the M-LEFS. Results: Reliability of M-LEFS revealed excellent Cronbach's alpha value of 0.98. Construct validity, evaluated using exploratory factor analysis, exhibited good factor loadings (>0.6) of all 20 items. Interestingly, we extracted 2 components which was not reported elsewhere. With a cut-off point of 60, the sensitivity of the scale was 99% and the specificity was 81%. Conclusions: The M-LEFS had very good psychometric properties among the studied population. Further studies are needed to enhance these preliminary outcomes in Malaysia.http://www.sciencedirect.com/science/article/pii/S2214687317303230Cross-cultural adaptationLower extremity functionMalay versionReliabilityValidity
spellingShingle Muhammad Ariff Mohd Yunus
Ramli Musa
Mohd Yusof Nazri
Construct and criterion validity of the Malaysia version of Lower Extremity Functional Scale (LEFS)
Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology
Cross-cultural adaptation
Lower extremity function
Malay version
Reliability
Validity
title Construct and criterion validity of the Malaysia version of Lower Extremity Functional Scale (LEFS)
title_full Construct and criterion validity of the Malaysia version of Lower Extremity Functional Scale (LEFS)
title_fullStr Construct and criterion validity of the Malaysia version of Lower Extremity Functional Scale (LEFS)
title_full_unstemmed Construct and criterion validity of the Malaysia version of Lower Extremity Functional Scale (LEFS)
title_short Construct and criterion validity of the Malaysia version of Lower Extremity Functional Scale (LEFS)
title_sort construct and criterion validity of the malaysia version of lower extremity functional scale lefs
topic Cross-cultural adaptation
Lower extremity function
Malay version
Reliability
Validity
url http://www.sciencedirect.com/science/article/pii/S2214687317303230
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AT mohdyusofnazri constructandcriterionvalidityofthemalaysiaversionoflowerextremityfunctionalscalelefs