Systematic review of the psychometric properties of the Victorian Institute of Sports Assessment - Achilles tendinopathy questionnaire.

The cultural adaptation of the Spanish-language and Brazilian-Portuguese-language VISA-A presents adequate methodological quality. However, further studies are required, with greater methodological rigor, of the cultural adaptations of measurement instruments.IMPLICATIONS FOR REHABILITATIONOn available evidence, the Spanish-language and Brazilian-Portuguese language versions of the Victorian Institute of Sports Assessment - Achilles questionnaire are the most appropriate for patients with Achilles tendinopathy.Robust methods should be designed and implemented to obtain higher quality instruments for patients with Achilles tendinopathy to be used systematically in daily clinical practice.Most previous transcultural versions of the Victorian Institute of Sports Assessment - Achilles tendinopathy questionnaire have presented inadequate evidence of their psychometric properties and should be used with caution for patients with Achilles tendinopathy.