Validity and reliability of the French translation of the VISA-A questionnaire for Achilles tendinopathy

Purpose The Victorian Institute of Sport Assessment – Achilles tendinopathy questionnaire (VISA-A)
evaluates the clinical severity of Achilles tendinopathy. The aim of this study was to translate the
VISA-A into French and to study the reliability and validity of this French version, the VISA-AF.
Method The VISA-A was translated into French to produce the VISA-AF using a validated
methodology in six steps. Thereafter, several psychometric properties of this French version such as
test–retest reliability, internal consistency, construct validity and floor and ceiling effects were
evaluated. Therefore, we recruited 116 subjects, distributed into 3 groups: pathological patients
(n¼31), at-risk athletes (n¼63) and healthy people (n¼22). Results The final version of the VISAAF
was approved by an expert committee. On a scale ranging from 0 to 100, the average scores of
the VISA-AF obtained were 59 (± 18) for the pathological group, 99 (± 1) for the healthy group and
94 (± 7) for the at-risk group. The VISA-AF shows excellent reliability, low correlations with the
discriminant subscales of the SF-36 and moderate correlations with the convergent subscales of the
SF-36. Conclusions The French version of the VISA-A is equivalent to its original version and is a
reliable and valid questionnaire for French-speaking patients with Achilles tendinopathy.