PURPOSE: The aim of this methodological study was to cross-culturally translate the Shoulder Activity Scale ( @entity3457 ) into the Persian and determine its clinimetric properties including reliability, validity, and responsiveness in @entity1 with @entity74 . METHOD: Persian version of the @entity3457 was obtained after standard forward-backward translation. Three questionnaires were completed by the respondents: @entity3457 , shoulder @entity158 and disability index (SPADI), and Short-Form 36 Health Survey (SF-36). The @entity1 completed the @entity3457 , 1 week after the first visit to evaluate the test-retest reliability. Construct validity was evaluated by examining the associations between the scores on the @entity3457 and the scores obtained from the SPADI, SF-36, and age of the @entity1 . To assess responsiveness, data were collected in the first visit and then again after 4 weeks physiotherapy intervention. Test-retest reliability and internal consistency were assessed using Intra-class Correlation Coefficient (ICC) and Cronbach's alpha, respectively. To evaluate construct validity, Spearman's rank correlation was used. The ability of the @entity3457 to detect changes was evaluated by the receiver-operating characteristics method. RESULTS: No problem or language difficulties were reported during translation process. Test-retest reliability of the @entity3457 was excellent with an ICC of 0.98. Also, the marginal Cronbach's alpha level of 0.64 was obtained. The correlation between the @entity3457 and the SPADI was low, proving divergent validity, whereas the correlations between the @entity3457 and the SF-36/age were moderate proving convergent validity. A marginally acceptable responsiveness was achieved for the Persian @entity3457 . CONCLUSIONS: The study provides some evidences to support the test-retest reliability, internal consistency, construct validity, and responsiveness of the Persian version of the @entity3457 in @entity1 with @entity74 . Therefore, it seems that this instrument is a useful measure of shoulder activity level in research setting and clinical practice. IMPLICATIONS FOR REHABILITATION: The @entity3457 ( @entity3457 ) is a reliable, valid, and responsive measure of shoulder activity level in Persian-speaking @entity1 with different @entity74 . The results on clinimetric properties of the Persian @entity3457 are comparable with its original, English version. Persian version of the @entity3457 can be used in "clinical" and "research" settings of @entity1 with @entity74 .

Reliability, validity, and responsiveness of the Persian version of Shoulder Activity Scale in a group of @entity1 with XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity74 :: ('MESH:D030342', 'Disease') :: ['shoulder disorders'] @entity3457 :: ('OMIM:612348', 'Disease') :: ['shoulder activity scale', 'SAS'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain']
@entity74 :: (MESH:D030342,Disease) :: ['shoulder disorders']
