Article

OBJECTIVE: We created a tool for assessing physical activity (PA), the
Acti'MET((R)) calculator, to quickly estimate weekly energy expenditure. This
study aimed to assess the metrological properties of the tool in cardiac
rehabilitation (CR). METHODS: Two examiners evaluated the reliability and
concurrent validity of the tool with cardiac patients. The validity of the tool
was assessed by comparison with other classical methods for measurement of PA
such as the Dijon Physical Activity Score (PAS) and the International Physical
Activity Questionnaire (IPAQ) score, the 6-min walk test (6MWT) and the
cardiopulmonary maximal exercise test. Correlation was assessed by Pearson or
Spearman correlation analysis. RESULTS: For the 36 cardiac patients (mean age
55+/-11 years, 24 men), inter-rater and intra-rater reliabilities were strong:
r=0.87 and r=0.98, respectively, both P<0.0001. We found a strong correlation of
the Acti'MET((R)) score with the IPAQ score (r=0.88, P<0.0001), moderate
correlation with the PAS (r=0.39, P<0.05) and 6MWT (r=0.54, P<0.01), and no
correlation with peak power output. CONCLUSION: The Acti'MET((R)) calculator is
reliable, valid and easy to use for assessing PA in CR. This tool seems to well
reflect the weekly PA, unlike the PAS, which evaluates PA on a yearly basis.
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Langue : ANGLAIS